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Passage au Périhélie des Comètes |
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Passage au Périhélie des Comètes |
Un des phénomènes les plus impressionnants de l'Univers nous dévoile peu à peu tous ses secrets.
Crainte de mauvais présages dans l'Antiquité, supposées maintenant avoir joué un rôle majeur dans le développement de la vie sur Terre, les comètes sont une éternelle source d'études et de fascination pour les astronomes amateurs comme pour les professionnels.
Fourmillant de conseils pratiques et d'anecdotes, le livre de Michel Ory nous immerge dans la vie quotidienne de ces chasseurs de comètes. Comment en découvrir une ? Comment se la faire attribuer ? Peut-on déterminer son orbite, calculer sa trajectoire, anticiper son retour ?
On découvre une communauté internationale de passionnés qui, depuis longtemps, contribue sans relâche à l'étude de ces phénomènes célestes. De nombreuses photos et des illustrations réalisées par le dessinateur de presse Pitch Comment viennent enrichir l'ensemble.
Professeur de physique au lycée cantonal de Porrentruy, ancien journaliste et astronome amateur passionné, Michel Ory écume les observatoires aux quatre coins du globe, à la recherche de ces phénomènes célestes. En 2008, par la découverte de 304P/Ory, il intègre la « communauté » des chasseurs/découvreurs de comètes.
Sommaire : 1. Découvrir sa première comète – 2. Origine et nature des comètes – 3. Les étoiles filantes, des poussières de comètes – 4. Cometography, la référence mondiale – 5. Mes amateur(e)s stars – 6. Souvent perdues, parfois retrouvées – 7. Ils ont décroché le jackpot – 8. L'affaire Bappu et la légende Ikeya – 9. Une comète pour la science – 10. Comment observer les comètes depuis son jardin ? – 11. Voir la prochaine grande comète – Annexe. Où évoluent les comètes dans le système solaire ? – Bibliographie – Glossaire – Index
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Date de Passage au Périhélie des Comètes d'après les données provenant de l'IAU - Minor Planet Center - Central Bureau for Astronomical Telegrams
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Date de passage au plus près du Soleil Nom Magnitude prévue Distance au Soleil (en millions de km) Période (en années) 7/ 2/1986 1P Halley 1.7 90.389 75.56 4/ 8/1989 23P Brorsen-Metcalf 5.9 72.507 69.78 4/12/1992 109P Swift-Tuttle 4.7 145.586 133.73 9/ 9/1995 122P de Vico 5.7 99.542 74.00 29/ 3/1997 C/1995 O1 Hale-Bopp -1.9 134.212 2374.54 13/ 5/2000 165P LINEAR 20.0 1029.280 75.57 12/ 5/2001 167P CINEOS 20.1 1767.038 65.33 5/ 3/2002 153P Ikeya-Zhang 5.4 78.496 359.82 18/ 5/2002 166P NEAT 19.7 1273.854 51.36 27/ 1/2006 C/2002 VQ94 LINEAR 17.8 1021.338 2512.38 3/ 9/2006 177P Barnard 14.0 163.281 120.78 7/ 6/2007 C/2007 D1 LINEAR 17.7 1318.889 49619.73 16/ 4/2009 C/2009 G1 STEREO 10.6 170.233 --- 30/ 3/2010 P/2010 E2 Jarnac 18.6 362.265 25.39 29/ 8/2010 P/2010 J3 McMillan 16.7 367.012 26.89 20/ 4/2011 P/2010 JC81 WISE 13.8 270.232 23.09 23/ 7/2011 27P Crommelin 10.6 112.230 27.84 6/10/2011 P/2012 C3 PANSTARRS 21.6 539.439 30.44 27/12/2011 P/2011 C2 Gibbs 20.0 810.877 20.19 22/ 1/2012 P/2011 JB15 Spacewatch-Boattini 19.8 751.605 19.96 1/ 6/2012 P/2012 G1 PANSTARRS 20.6 386.585 8.52 13/ 6/2012 P/2012 NJ La Sagra 15.8 193.565 24.62 9/11/2012 P/2012 U2 PANSTARRS 20.1 535.287 19.07 1/12/2012 262P McNaught-Russell 14.0 189.441 18.02 18/12/2012 273P Pons-Gambart 11.8 123.281 179.83 2/ 3/2013 P/2013 P1 PANSTARRS 20.4 505.683 25.10 7/ 6/2013 270P Gehrels 16.8 530.687 17.21 4/ 7/2013 P/2013 N5 PANSTARRS 21.1 272.268 17.72 12/ 7/2013 271P van Houten-Lemmon 20.7 637.868 18.69 16/ 7/2013 P/2012 B1 PANSTARRS 17.9 577.170 16.69 12/12/2013 P/2013 G1 Kowalski 19.4 502.545 18.09 1/ 2/2014 290P Jager 14.7 344.840 15.48 16/ 2/2014 P/2013 N3 PANSTARRS 20.8 449.686 20.10 30/ 3/2014 P/2015 D5 Kowalski 18.9 685.344 26.84 20/ 4/2014 P/2014 O3 PANSTARRS 20.5 695.424 20.82 17/ 5/2014 134P Kowal-Vavrova 16.7 387.985 15.67 1/ 7/2014 P/2014 L3 Hill 18.5 276.762 23.36 20/ 7/2014 P/2014 L2 NEOWISE 16.4 331.687 15.83 11/ 8/2014 P/2011 S1 Gibbs 20.6 1026.330 25.15 28/ 9/2014 269P Jedicke 19.3 602.742 18.82 21/12/2014 307P LINEAR 19.0 281.656 13.94 21/12/2014 P/2015 T3 PANSTARRS 19.7 318.299 9.00 25/12/2014 P/2014 M4 PANSTARRS 20.0 356.152 14.23 31/12/2014 P/2014 X1 Elenin 17.3 270.493 15.47 2/ 2/2015 P/2015 B4 Lemmon-PANSTARRS 19.0 561.193 24.90 17/ 2/2015 P/2015 A3 PANSTARRS 22.0 174.161 21.83 25/ 4/2015 174P Echeclus 17.3 870.317 35.11 25/ 4/2015 P/2015 C1 TOTAS-Gibbs 18.9 432.911 16.88 7/ 5/2015 308P Lagerkvist-Carsenty 19.7 628.513 16.97 4/ 6/2015 P/2015 K5 PANSTARRS 20.1 449.663 17.43 29/ 6/2015 P/2015 R1 PANSTARRS 19.0 321.643 14.26 30/ 6/2015 P/2015 D6 Lemmon-PANSTARRS 20.5 682.208 19.09 4/ 8/2015 140P Bowell-Skiff 18.3 296.429 16.29 16/ 8/2015 P/2015 PD229 Cameron-ISON 17.8 722.141 19.26 5/ 9/2015 P/2015 Q2 Pimentel 18.3 274.244 19.93 11/ 9/2015 P/2015 M2 PANSTARRS 19.8 886.462 19.46 13/ 9/2015 P/2015 B1 PANSTARRS 20.5 898.602 29.27 1/10/2015 P/2015 W2 Catalina 18.9 398.920 19.70 11/10/2015 151P Helin 16.8 367.602 13.84 17/10/2015 P/2001 H5 NEAT 18.6 366.399 15.06 25/10/2015 318P McNaught-Hartley 15.6 364.262 20.54 29/11/2015 329P LINEAR-Catalina 15.0 250.580 11.83 29/12/2015 P/2014 W4 PANSTARRS 19.9 639.048 16.94 20/ 1/2016 P/2015 P4 PANSTARRS 20.2 375.374 14.87 22/ 2/2016 P/2016 A7 PANSTARRS 20.8 327.771 11.29 17/ 3/2016 332P-B Ikeya-Murakami 20.3 235.301 5.41 17/ 3/2016 332P-D Ikeya-Murakami 20.3 235.177 5.41 17/ 3/2016 332P-E Ikeya-Murakami 22.3 235.337 5.41 17/ 3/2016 332P-F Ikeya-Murakami 22.3 236.992 5.63 17/ 3/2016 332P-I Ikeya-Murakami 20.8 235.328 5.41 17/ 3/2016 332P-J Ikeya-Murakami 20.8 235.672 5.50 19/ 3/2016 332P-G Ikeya-Murakami 20.1 231.826 5.33 26/ 4/2016 P/2017 G1 PANSTARRS 19.8 378.073 19.65 30/ 4/2016 53P Van Biesbroeck 14.0 364.021 12.65 23/ 6/2016 P/2017 D1 Fuls 21.2 407.259 10.61 19/ 7/2016 56P Slaughter-Burnham 16.7 373.308 11.41 22/ 7/2016 P/2016 R4 Gibbs 18.6 417.602 12.31 24/ 8/2016 C/2015 TQ209 LINEAR 13.9 211.702 --- 25/ 8/2016 330P Catalina 19.7 447.858 17.06 27/ 8/2016 C/2015 V4 PANSTARRS 19.8 816.253 79.27 28/ 8/2016 C/2016 A8 LINEAR 14.9 283.285 201.79 4/ 9/2016 P/2017 D4 PANSTARRS 20.3 420.203 20.78 13/ 9/2016 C/2015 H2 PANSTARRS 17.9 745.492 --- 7/10/2016 314P Montani 19.1 634.841 19.59 9/10/2016 C/2016 R3 Borisov 15.2 68.070 --- 18/10/2016 C/2016 P4 PANSTARRS 21.9 882.951 8783.82 27/10/2016 P/2015 TP200 LINEAR 18.6 505.511 19.61 1/11/2016 344P Read 18.9 420.481 10.73 27/11/2016 315P LONEOS 16.5 353.819 10.98 4/12/2016 C/2016 B1 NEOWISE 17.7 481.520 8967.82 13/12/2016 C/2014 OE4 PANSTARRS 19.1 935.012 --- 29/12/2016 C/2016 T2 Matheny 18.8 284.423 990.71 5/ 1/2017 P/2017 B4 PANSTARRS 20.5 419.008 9.26 9/ 1/2017 128P Shoemaker-Holt 15.3 456.274 9.52 9/ 1/2017 C/2017 D5 PANSTARRS 20.8 322.507 1211.00 13/ 1/2017 C/2016 U1 NEOWISE 12.4 48.624 --- 18/ 1/2017 C/2017 C1 NEOWISE 20.3 223.856 93.21 21/ 1/2017 C/2017 C2 PANSTARRS 19.2 362.195 931.12 28/ 1/2017 343P NEAT-LONEOS 19.6 339.387 12.76 30/ 1/2017 C/2017 A3 Elenin 18.0 574.816 285.81 1/ 2/2017 C/2016 T1 Matheny 20.5 344.974 1413.84 2/ 2/2017 336P McNaught 20.6 418.020 11.29 13/ 2/2017 346P Catalina 19.0 333.066 9.47 23/ 2/2017 P/2016 WM48 Lemmon 19.3 264.246 23.33 1/ 3/2017 93P Lovas 13.0 253.868 9.17 5/ 3/2017 C/2016 VZ18 PANSTARRS 17.8 136.694 2011.10 15/ 3/2017 P/2016 S1 PANSTARRS 17.9 359.196 23.82 10/ 4/2017 C/2017 E1 Borisov 14.3 135.337 --- 16/ 4/2017 C/2017 G3 PANSTARRS 19.3 386.750 5603.16 23/ 4/2017 C/2017 E4 Lovejoy 14.1 73.502 --- 27/ 4/2017 C/2017 D3 ATLAS 18.0 743.431 --- 28/ 4/2017 P/2016 A3 PANSTARRS 20.0 723.918 22.15 28/ 4/2017 C/2017 M3 PANSTARRS 20.5 696.272 2152.90 10/ 5/2017 C/2015 ER61 PANSTARRS 11.6 156.374 --- 10/ 5/2017 C/2015 E61-B PANSTARRS 14.1 156.631 --- 15/ 5/2017 C/2017 A1 PANSTARRS 18.8 342.260 655.07 18/ 5/2017 C/2015 T2 PANSTARRS 20.9 1037.807 --- 24/ 5/2017 C/2017 S7 Lemmon 20.5 1137.858 --- 30/ 5/2017 P/2017 K3 Gasparovic 18.8 350.830 13.19 4/ 6/2017 C/2016 E1 PANSTARRS 20.1 1223.268 --- 6/ 6/2017 334P NEAT 20.1 663.760 17.88 7/ 6/2017 C/2017 E3 PANSTARRS 17.9 888.330 --- 10/ 6/2017 P/2017 G2 PANSTARRS 19.7 424.745 22.89 11/ 6/2017 C/2015 V2 Johnson 6.7 246.323 --- 19/ 6/2017 90P Gehrels 18.4 443.356 14.89 22/ 6/2017 352P Skiff 17.4 379.160 17.11 14/ 7/2017 C/2017 D2 Barros 16.0 373.113 --- 15/ 8/2017 C/2018 F3 Johnson 19.2 371.477 --- 22/ 8/2017 359P LONEOS 20.2 469.060 9.99 27/ 8/2017 C/2015 VL62 Lemmon-Yeung-PANSTAR 13.6 407.128 --- 28/ 8/2017 C/2017 U2 Fuls 21.1 1003.830 --- 30/ 8/2017 C/2017 S2 PANSTARRS 20.8 540.292 93.42 31/ 8/2017 C/2017 Y1 PANSTARRS 20.3 554.720 --- 1/ 9/2017 145P Shoemaker-Levy 17.3 283.749 8.42 6/ 9/2017 C/2016 T3 PANSTARRS 17.3 395.582 1478.28 7/ 9/2017 C/2014 B1 Schwartz 18.9 1428.615 --- 9/ 9/2017 1I `Oumuamua 20.4 38.280 --- 16/ 9/2017 C/2016 N4 MASTER 15.8 478.274 --- 23/ 9/2017 P/2018 A5 PANSTARRS 21.6 402.355 13.37 15/10/2017 C/2017 O1 ASASSN 12.0 223.263 --- 20/10/2017 C/2018 A1 PANSTARRS 18.1 360.784 125.72 31/10/2017 C/2017 W2 Leonard 20.1 590.830 50.38 12/11/2017 24P Schaumasse 9.9 176.923 8.16 21/11/2017 C/2016 A1 PANSTARRS 16.7 795.804 --- 26/11/2017 C/2017 F2 PANSTARRS 20.3 1036.761 --- 29/11/2017 C/2017 F1 Lemmon 19.9 672.646 --- 2/12/2017 14P Wolf 20.6 409.606 8.79 4/12/2017 183P Korlevic-Juric 18.6 589.737 9.71 6/12/2017 C/2017 P2 PANSTARRS 16.3 369.400 --- 9/12/2017 139P Vaisala-Oterma 16.9 509.366 9.62 13/12/2017 350P McNaught 22.9 555.619 8.27 16/12/2017 C/2015 V1 PANSTARRS 15.8 639.151 --- 17/12/2017 356P WISE 20.1 401.164 8.48 18/12/2017 C/2017 U5 PANSTARRS 21.1 645.991 69.35 22/12/2017 353P McNaught 20.0 330.547 8.52 24/12/2017 C/2018 E2 Barros 19.4 586.283 --- 28/12/2017 C/2015 X5 PANSTARRS 19.7 1016.543 --- 3/ 1/2018 C/2017 K6 Jacques 15.3 298.586 --- 8/ 1/2018 C/2017 K4 ATLAS 17.0 397.101 153.10 18/ 1/2018 P/1998 VS24 LINEAR 18.3 513.107 9.63 22/ 1/2018 P/2018 H2 PANSTARRS 19.5 301.778 9.20 28/ 1/2018 250P Larson 18.6 337.623 7.30 28/ 1/2018 C/2016 Q4 Kowalski 19.9 1060.369 69.87 8/ 2/2018 245P WISE 19.8 328.561 8.14 10/ 2/2018 P/2017 Y3 Leonard 18.4 191.526 30.87 14/ 2/2018 C/2017 AB5 PANSTARRS 19.8 1377.729 --- 19/ 2/2018 C/2015 O1 PANSTARRS 15.0 557.614 --- 20/ 2/2018 C/2017 T1 Heinze 12.6 87.463 --- 24/ 2/2018 P/2018 C1 Lemmon-Read 18.8 395.472 13.44 26/ 2/2018 C/2017 S6 Catalina 16.4 231.440 --- 28/ 2/2018 P/2017 W3 Gibbs 18.7 578.275 21.95 3/ 3/2018 C/2018 R4 Fuls 18.2 256.806 6160.82 17/ 3/2018 C/2017 K1 PANSTARRS 19.7 1090.428 --- 18/ 3/2018 235P LINEAR 17.4 399.856 7.88 21/ 3/2018 391P Kowalski 17.6 615.676 10.12 28/ 3/2018 C/2018 B1 Lemmon 19.9 765.813 --- 6/ 4/2018 C/2018 K1 Weiland 19.4 281.712 164.88 17/ 4/2018 C/2018 E1 ATLAS 17.1 403.774 395.54 26/ 4/2018 C/2015 XY1 Lemmon 19.2 1185.201 --- 5/ 5/2018 143P Kowal-Mrkos 16.5 377.263 8.86 5/ 5/2018 P/2018 L5 Leonard 20.1 344.817 6.91 8/ 5/2018 C/2016 R2 PANSTARRS 13.7 389.047 10807.94 14/ 5/2018 74P Smirnova-Chernykh 16.1 559.773 9.11 14/ 5/2018 187P LINEAR 17.2 579.569 9.77 15/ 5/2018 240P NEAT 17.9 318.641 7.60 18/ 5/2018 C/2018 A4 PANSTARRS 20.4 358.581 42.57 19/ 5/2018 66P duToit 15.9 193.680 14.95 22/ 5/2018 159P LONEOS 18.9 541.293 14.16 22/ 5/2018 C/2018 EF9 Lemmon 20.1 233.163 --- 29/ 5/2018 357P Hill 22.2 376.960 9.42 31/ 5/2018 164P Christensen 15.4 251.501 6.99 1/ 6/2018 C/2018 C2 Lemmon 16.3 293.157 --- 4/ 6/2018 C/2017 M5 TOTAS 18.0 897.231 --- 5/ 6/2018 C/2018 EN4 NEOWISE 18.1 217.629 77.40 6/ 6/2018 P/2018 VN2 Leonard 20.4 316.944 8.19 9/ 6/2018 370P NEAT 19.6 370.829 16.32 14/ 6/2018 C/2017 X1 PANSTARRS 20.1 698.533 174.44 17/ 6/2018 P/2002 EJ57 LINEAR 19.3 394.531 16.45 20/ 6/2018 367P Catalina 20.8 377.582 6.56 20/ 6/2018 P/2017 P1 PANSTARRS 21.0 814.514 22.21 20/ 6/2018 P/2017 TW13 Lemmon 18.9 310.171 19.08 24/ 6/2018 82P Gehrels 23.9 543.293 8.41 2/ 7/2018 361P Spacewatch 19.2 414.976 10.97 10/ 7/2018 C/2018 M1 Catalina 17.1 194.869 99.02 14/ 7/2018 49P Arend-Rigaux 16.9 214.564 6.74 17/ 7/2018 C/2016 N6 PANSTARRS 14.1 398.416 --- 18/ 7/2018 C/2017 T3 ATLAS 10.0 123.440 --- 20/ 7/2018 366P Spacewatch 20.3 340.899 6.54 31/ 7/2018 P/2018 L4 PANSTARRS 19.4 251.455 10.99 2/ 8/2018 C/2018 N1 NEOWISE 14.5 196.091 --- 9/ 8/2018 105P Singer Brewster 17.8 306.420 6.46 10/ 8/2018 C/2016 M1 PANSTARRS 9.7 331.156 --- 12/ 8/2018 48P Johnson 15.5 299.865 6.55 16/ 8/2018 C/2017 S3 PANSTARRS 4.1 31.027 --- 21/ 8/2018 C/2019 Q3 PANSTARRS 21.1 1085.606 --- 26/ 8/2018 243P NEAT 17.7 366.616 7.50 29/ 8/2018 P/2019 A6 Lemmon-PANSTARRS 20.8 289.366 12.41 31/ 8/2018 C/2018 O1 ATLAS 19.4 233.520 148.09 9/ 9/2018 149P Mueller 19.7 413.884 8.41 10/ 9/2018 21P Giacobini-Zinner 9.4 151.121 6.54 14/ 9/2018 368P NEAT 17.7 308.810 12.99 16/ 9/2018 59P Kearns-Kwee 14.6 352.208 9.50 16/ 9/2018 A/2019 G4 20.9 876.168 --- 22/ 9/2018 C/2017 U4 PANSTARRS 20.3 1154.963 --- 2/10/2018 P/2011 V1 Boattini 18.6 259.257 7.57 2/10/2018 P/2018 V5 Trujillo-Sheppard 22.4 703.483 26.79 5/10/2018 371P LINEAR-Skiff 19.9 327.239 8.55 10/10/2018 P/2019 A1 PANSTARRS 21.3 330.632 11.59 12/10/2018 P/2005 J1 McNaught 20.2 229.967 6.75 15/10/2018 369P Hill 18.5 292.086 9.18 22/10/2018 372P McNaught 21.7 571.005 9.56 4/11/2018 64P Swift-Gehrels 13.1 207.797 9.40 8/11/2018 P/2018 P4 PANSTARRS 20.1 548.661 17.25 11/11/2018 38P Stephan-Oterma 9.2 237.020 37.67 12/11/2018 P/2018 L1 PANSTARRS 19.8 282.647 6.98 20/11/2018 P/2019 A2 ATLAS 18.4 529.292 13.68 25/11/2018 C/2018 V2 ATLAS 20.1 370.759 125.43 1/12/2018 247P LINEAR 17.1 223.125 7.91 2/12/2018 C/2018 L2 ATLAS 14.3 256.339 4238.97 3/12/2018 C/2018 V1 Machholz-Fujikawa-Iwam 7.3 57.933 --- 9/12/2018 60P Tsuchinshan 15.2 245.411 6.61 13/12/2018 137P Shoemaker-Levy 15.1 288.344 9.61 13/12/2018 198P ODAS 12.2 299.561 6.83 13/12/2018 C/2018 F1 Grauer 19.1 448.068 4389.67 20/12/2018 375P Hill 19.3 283.760 13.09 30/12/2018 C/2018 X3 PANSTARRS 20.1 403.112 43.51 1/ 1/2019 P/2018 Y2 Africano 19.7 581.682 20.37 2/ 1/2019 C/2019 M3 ATLAS 18.0 361.861 --- 9/ 1/2019 239P LINEAR 17.9 247.389 9.45 10/ 1/2019 374P Larson 20.0 399.747 11.09 10/ 1/2019 C/2018 R5 Lemmon 20.2 542.322 108.87 12/ 1/2019 C/2018 A3 ATLAS 15.7 490.026 8940.82 13/ 1/2019 171P Spahr 15.9 265.056 6.70 15/ 1/2019 P/2019 A8 PANSTARRS 21.0 341.005 7.34 17/ 1/2019 C/2017 M4 ATLAS 14.1 486.746 --- 24/ 1/2019 131P Mueller 16.9 361.115 7.06 27/ 1/2019 223P Skiff 18.1 363.283 8.48 2/ 2/2019 C/2017 B3 LINEAR 15.2 587.133 --- 4/ 2/2019 123P West-Hartley 16.1 321.057 7.63 6/ 2/2019 C/2018 Y1 Iwamoto 10.6 192.118 1619.18 11/ 2/2019 P/1996 R2 Lagerkvist 18.2 387.219 7.33 15/ 2/2019 186P Garradd 17.1 645.359 10.88 22/ 2/2019 P/2019 S2 PANSTARRS 22.6 562.352 10.31 25/ 2/2019 C/2010 U3 Boattini 14.8 1263.246 --- 27/ 2/2019 C/2018 P5 PANSTARRS 21.3 685.048 45.88 1/ 3/2019 C/2018 V4 Africano 20.1 478.120 2913.09 2/ 3/2019 P/2012 O1 McNaught 21.0 214.749 6.66 18/ 3/2019 69P Taylor 22.2 341.215 7.66 19/ 3/2019 C/2019 B1 Africano 18.9 238.843 1693.55 26/ 3/2019 C/2019 LB7 Kleyna 23.6 371.592 203.34 29/ 3/2019 29P Schwassmann-Wachmann 15.8 863.147 14.84 1/ 4/2019 C/2019 L2 NEOWISE 20.2 242.671 124.03 2/ 4/2019 78P Gehrels 13.9 300.762 7.23 5/ 4/2019 232P Hill 18.7 446.103 9.48 8/ 4/2019 373P Rinner 20.3 345.760 7.42 8/ 4/2019 C/2019 J1 Lemmon 17.8 371.172 577.68 13/ 4/2019 P/2014 C1 TOTAS 17.0 250.496 5.29 14/ 4/2019 P/2017 U3 PANSTARRS 20.8 664.315 10.94 27/ 4/2019 C/2019 H1 NEOWISE 19.0 276.212 3718.09 28/ 4/2019 C/2016 X1 Lemmon 19.2 1131.066 43862.73 2/ 5/2019 138P Shoemaker-Levy 20.6 254.285 6.89 6/ 5/2019 P/2012 O2 McNaught 20.6 253.411 6.90 7/ 5/2019 P/2019 W1 PANSTARRS 21.3 499.268 9.70 11/ 5/2019 C/2018 W1 Catalina 17.6 203.551 100.96 11/ 5/2019 C/2019 D1 Flewelling 16.0 236.402 1706.42 11/ 5/2019 P/2019 GG21 PANSTARRS 20.5 589.716 20.44 31/ 5/2019 C/2019 JU6 ATLAS 18.6 306.178 6597.84 1/ 6/2019 380P PANSTARRS 18.9 447.963 9.53 5/ 6/2019 222P LINEAR 19.9 123.742 4.94 7/ 6/2019 C/2018 R3 Lemmon 12.1 192.642 --- 8/ 6/2019 C/2019 A5 PANSTARRS 21.7 945.619 100.06 9/ 6/2019 P/2019 B2 Groeller 20.4 364.967 7.64 12/ 6/2019 209P LINEAR 16.3 144.784 5.09 16/ 6/2019 C/2019 K4 Ye 18.2 338.254 --- 17/ 6/2019 231P LINEAR-NEAT 19.4 454.223 8.10 17/ 6/2019 P/2000 R2 LINEAR 21.2 242.917 6.46 19/ 6/2019 261P Larson 18.8 301.121 6.52 22/ 6/2019 C/2019 K5 Young 17.8 304.621 2045.38 22/ 6/2019 P/2019 M2 ATLAS 18.2 159.368 5.27 26/ 6/2019 P/1999 RO28 LONEOS 21.2 167.979 6.34 4/ 7/2019 31P Schwassmann-Wachmann 21.6 512.226 8.73 4/ 7/2019 P/2021 J3 ATLAS 17.0 734.584 26.72 8/ 7/2019 C/2018 X2 Fitzsimmons 17.6 318.041 1732.69 13/ 7/2019 C/2018 A6 Gibbs 16.2 451.572 59.27 19/ 7/2019 C/2019 J2 Palomar 16.6 258.234 2025.12 21/ 7/2019 C/2019 K8 ATLAS 19.1 477.935 --- 21/ 7/2019 P/2019 X1 Pruyne 20.3 643.708 15.34 22/ 7/2019 A/2019 Q2 19.2 188.217 432.12 23/ 7/2019 388P Gibbs 18.3 299.569 12.01 26/ 7/2019 C/2019 A9 PANSTARRS 18.2 214.060 247.41 29/ 7/2019 200P Larsen 16.6 493.378 10.99 29/ 7/2019 C/2020 A3 ATLAS 19.6 873.498 --- 1/ 8/2019 379P Spacewatch 20.7 347.205 6.60 1/ 8/2019 P/2019 T5 ATLAS 18.6 228.399 22.62 2/ 8/2019 P/2006 F4 Spacewatch 20.7 347.239 6.60 2/ 8/2019 C/2019 J3 ATLAS 18.6 355.238 --- 4/ 8/2019 264P Larsen 19.1 364.040 7.68 5/ 8/2019 163P NEAT 20.0 308.873 7.31 5/ 8/2019 168P Hergenrother 17.2 203.103 6.78 11/ 8/2019 C/2019 L1 PANSTARRS 19.5 432.781 30.87 17/ 8/2019 P/2012 K3 Gibbs 18.7 312.873 6.91 17/ 8/2019 C/2018 DO4 Lemmon 17.2 360.729 129.23 18/ 8/2019 C/2019 Y5 PANSTARRS 21.4 735.262 23544.86 26/ 8/2019 P/2019 S3 PANSTARRS 21.0 270.203 6.31 28/ 8/2019 396P 21.5 595.633 17.79 4/ 9/2019 P/2021 L4 PANSTARRS 20.7 417.312 5.63 5/ 9/2019 C/2018 W2 Africano 10.9 217.831 --- 6/ 9/2019 387P Boattini 16.9 189.345 10.51 8/ 9/2019 A/2018 V3 15.9 200.647 1375.30 8/ 9/2019 C/2019 F2 ATLAS 18.0 335.534 68.23 9/ 9/2019 C/2018 KJ3 Lemmon 18.0 543.058 --- 10/ 9/2019 260P McNaught 13.9 211.801 6.90 10/ 9/2019 C/2020 R6 Rankin 18.5 467.749 12381.95 14/ 9/2019 385P Hill 18.7 383.893 8.88 14/ 9/2019 C/2017 U7 PANSTARRS 16.2 961.068 --- 18/ 9/2019 P/2019 U4 PANSTARRS 21.8 276.133 6.61 26/ 9/2019 376P LONEOS 19.7 420.506 14.05 27/ 9/2019 381P LINEAR-Spacewatch 19.9 339.110 19.02 27/ 9/2019 P/2005 GF8 LONEOS 18.7 420.493 14.05 7/10/2019 175P Hergenrother 19.3 292.618 6.45 11/10/2019 384P Kowalski 17.4 166.771 4.94 19/10/2019 C/2020 B3 Rankin 21.3 500.171 --- 26/10/2019 76P West-Kohoutek-Ikemura 18.1 239.882 6.47 26/10/2019 383P Christensen 19.7 212.363 6.68 26/10/2019 393P Spacewatch-Hill 19.9 629.816 10.48 28/10/2019 C/2020 K7 PANSTARRS 20.2 955.602 1039.96 7/11/2019 P/2019 T6 PANSTARRS 18.8 306.772 12.67 9/11/2019 68P Klemola 13.9 268.572 11.03 11/11/2019 C/2018 N2 ASASSN 12.8 467.513 --- 12/11/2019 P/2003 F2 NEAT 21.8 445.273 16.58 14/11/2019 155P Shoemaker 17.3 269.374 16.86 18/11/2019 215P NEAT 19.5 539.529 9.00 30/11/2019 394P PANSTARRS 20.9 409.726 9.02 30/11/2019 P/2013 T2 Schwartz 19.7 260.429 6.52 1/12/2019 294P LINEAR 18.0 192.434 5.72 2/12/2019 160P LINEAR 18.2 267.479 7.33 4/12/2019 C/2018 F4 PANSTARRS 21.9 514.780 --- 7/12/2019 401P McNaught 18.8 362.694 13.87 8/12/2019 2I Borisov 15.5 300.180 --- 9/12/2019 A/2019 G2 19.7 342.693 --- 20/12/2019 289P Blanpain 14.9 143.352 5.32 21/12/2019 A/2020 H9 22.7 385.884 --- 28/12/2019 P/2020 M1 PANSTARRS 21.4 402.640 11.88 29/12/2019 389P Siding Spring 20.1 248.976 13.35 8/ 1/2020 C/2020 A2 Iwamoto 14.5 146.178 --- 12/ 1/2020 101P Chernykh 16.3 350.723 13.98 14/ 1/2020 114P Wiseman-Skiff 14.1 236.082 6.67 17/ 1/2020 321P SOHO 7.4 8.104 3.77 22/ 1/2020 306P LINEAR 21.7 190.015 5.52 1/ 2/2020 407P PANSTARRS-Fuls 18.3 318.781 6.44 8/ 2/2020 112P Urata-Niijima 17.5 216.236 6.62 10/ 2/2020 A/2019 O4 21.5 545.377 189.29 13/ 2/2020 C/2019 K1 ATLAS 14.9 301.076 --- 3/ 3/2020 C/2020 K4 PANSTARRS 20.9 262.347 116.73 4/ 3/2020 203P Korlevic 19.5 478.486 10.09 9/ 3/2020 228P LINEAR 19.2 513.867 8.52 15/ 3/2020 C/2019 Y1 ATLAS 13.7 124.364 792.45 17/ 3/2020 P/2020 G1 Pimentel 14.3 75.664 6.86 22/ 3/2020 390P Gibbs 16.4 254.247 13.98 27/ 3/2020 C/2017 K5 PANSTARRS 18.3 1149.172 --- 31/ 3/2020 392P LINEAR 19.2 291.570 15.23 31/ 3/2020 P/2019 LD2 ATLAS 18.6 684.515 12.05 5/ 4/2020 P/2020 W1 Rankin 21.2 791.093 19.32 7/ 4/2020 210P Christensen 11.4 78.986 5.63 7/ 4/2020 C/2019 S4 Lemmon 19.3 514.955 3520.64 8/ 4/2020 P/2005 T2 Christensen 20.3 335.904 7.55 11/ 4/2020 C/2020 F6 PANSTARRS 20.4 525.232 8192.98 15/ 4/2020 313P Gibbs 21.5 361.949 5.63 19/ 4/2020 266P Christensen 20.6 349.182 6.64 27/ 4/2020 124P Mrkos 17.3 246.923 6.06 27/ 4/2020 354P LINEAR 20.7 299.440 3.46 27/ 4/2020 C/2020 H2 Pruyne 16.7 124.715 --- 2/ 5/2020 P/2020 O1 Lemmon-PANSTARRS 20.7 348.354 4.30 4/ 5/2020 C/2017 T2 PANSTARRS 8.2 241.679 --- 5/ 5/2020 C/2019 C1 ATLAS 22.1 984.460 18609.31 6/ 5/2020 P/2003 T12 SOHO 15.8 89.081 4.16 10/ 5/2020 87P Bus 15.7 314.274 6.41 20/ 5/2020 C/2019 K6 PANSTARRS 19.8 587.725 --- 27/ 5/2020 58P Jackson-Neujmin 19.1 206.093 8.26 27/ 5/2020 C/2020 F8 SWAN 6.1 64.365 --- 28/ 5/2020 P/2020 R5 PANSTARRS 20.4 510.720 11.12 31/ 5/2020 C/2019 Y4 ATLAS 2.3 37.614 --- 31/ 5/2020 C/2019 Y4-A ATLAS 2.3 37.614 --- 31/ 5/2020 C/2019 Y4-B ATLAS 3.5 37.841 --- 31/ 5/2020 C/2019 Y4-C ATLAS 3.4 37.770 --- 31/ 5/2020 C/2019 Y4-D ATLAS 3.2 37.685 --- 1/ 6/2020 36P Whipple 18.6 452.089 8.40 1/ 6/2020 C/2020 K3 Leonard 17.8 236.822 --- 2/ 6/2020 C/2020 H7 Lemmon 20.3 661.155 --- 3/ 6/2020 84P Giclas 16.2 257.095 6.69 4/ 6/2020 C/2020 H8 PANSTARRS 20.3 699.445 14485.90 5/ 6/2020 C/2020 H3 Wierzchos 18.2 344.119 --- 17/ 6/2020 C/2019 K7 Smith 15.4 669.603 --- 18/ 6/2020 258P PANSTARRS 21.4 520.738 9.22 18/ 6/2020 C/2019 U6 Lemmon 9.3 136.797 --- 19/ 6/2020 397P Lemmon 17.9 340.648 7.49 26/ 6/2020 2P Encke 4.8 50.145 3.30 29/ 6/2020 249P LINEAR 11.4 74.385 4.59 3/ 7/2020 C/2020 F3 NEOWISE 1.0 44.206 --- 12/ 7/2020 377P Scotti 19.9 750.613 17.38 16/ 7/2020 178P Hug-Bell 19.2 281.393 6.92 16/ 7/2020 C/2019 V1 Borisov 18.9 463.308 --- 20/ 7/2020 C/2019 Q1 Lemmon 18.7 747.786 --- 20/ 7/2020 P/2020 X1 ATLAS 20.0 429.666 9.63 29/ 7/2020 115P Maury 15.4 307.704 8.83 5/ 8/2020 C/2020 K2 PANSTARRS 25.0 1328.242 --- 8/ 8/2020 P/2020 S5 PANSTARRS 20.5 400.788 8.15 12/ 8/2020 304P Ory 18.2 188.241 5.59 14/ 8/2020 C/2020 Q1 Borisov 16.2 196.690 451.85 17/ 8/2020 C/2021 N3 PANSTARRS 19.6 853.010 2054.53 19/ 8/2020 386P PANSTARRS 20.9 354.204 8.17 23/ 8/2020 C/2020 N2 ATLAS 18.6 268.420 1030.30 29/ 8/2020 C/2020 H4 Leonard 15.8 138.635 333.45 6/ 9/2020 298P Christensen 21.0 329.585 6.81 10/ 9/2020 257P Catalina 15.4 320.558 7.30 10/ 9/2020 P/2013 W1 PANSTARRS 20.8 212.603 6.52 11/ 9/2020 278P McNaught 19.1 311.853 7.10 14/ 9/2020 C/2020 K8 Catalina-ATLAS 12.6 70.968 --- 15/ 9/2020 406P Gibbs 18.3 244.903 6.76 16/ 9/2020 403P Catalina 18.6 403.148 12.64 17/ 9/2020 296P Garradd 18.3 272.631 6.54 25/ 9/2020 312P NEAT 19.1 296.745 6.46 26/ 9/2020 88P Howell 13.7 202.445 5.47 26/ 9/2020 317P WISE 19.9 190.449 5.10 29/ 9/2020 254P McNaught 17.8 469.353 9.91 30/ 9/2020 331P Gibbs 18.2 431.038 5.21 1/10/2020 233P La Sagra 19.1 266.619 5.27 3/10/2020 218P LINEAR 18.2 174.850 5.44 7/10/2020 311P PANSTARRS 20.8 289.587 3.24 9/10/2020 C/2020 T5 Lemmon 20.1 282.623 --- 17/10/2020 P/2015 X6 PANSTARRS 20.9 340.762 4.57 19/10/2020 378P McNaught 20.1 505.276 16.08 19/10/2020 P/2005 Y2 McNaught 17.1 505.276 16.08 19/10/2020 P/2019 V2 Groeller 20.8 751.025 20.58 20/10/2020 C/2020 P1 NEOWISE 9.6 51.163 --- 22/10/2020 C/2019 NJ3 Lemmon 18.6 652.546 --- 25/10/2020 C/2020 M3 ATLAS 13.6 189.712 139.44 26/10/2020 184P Lovas 15.8 254.843 7.39 4/11/2020 C/2017 Y2 PANSTARRS 25.3 693.016 --- 9/11/2020 91P Russell 16.5 389.649 7.69 11/11/2020 P/2021 A5 PANSTARRS 20.4 392.060 5.32 15/11/2020 C/2020 X2 ATLAS 18.9 572.693 66.41 15/11/2020 C/2020 X4 Leonard 19.7 779.103 288.38 16/11/2020 P/2009 WX51 Catalina 19.2 119.789 5.41 17/11/2020 156P Russell-LINEAR 14.7 199.410 6.44 18/11/2020 P/2020 S7 PANSTARRS 21.1 443.007 11.26 23/11/2020 P/2020 S6 Leonard 18.5 280.448 6.83 24/11/2020 A/2020 M4 22.6 890.504 --- 26/11/2020 11P Tempel-Swift-LINEAR 9.0 207.736 5.95 26/11/2020 P/2007 Q2 Gilmore 20.3 278.988 13.44 30/11/2020 C/2020 W5 Lemmon 22.3 503.279 --- 1/12/2020 C/2019 N1 ATLAS 11.7 255.032 --- 3/12/2020 C/2020 Y3 ATLAS 18.6 299.067 1829.81 5/12/2020 412P WISE 20.4 242.000 5.48 7/12/2020 162P SidingSpring 13.0 192.855 5.44 7/12/2020 C/2021 C1 Rankin 20.0 520.786 --- 10/12/2020 220P McNaught 18.5 232.260 5.50 10/12/2020 A/2021 E2 19.2 342.306 3616.90 12/12/2020 C/2020 H5 Robinson 19.7 1398.024 --- 12/12/2020 C/2020 S3 Erasmus 10.8 59.595 --- 16/12/2020 141P Machholz 13.1 120.844 5.35 19/12/2020 293P Spacewatch 18.5 317.082 6.95 21/12/2020 C/2020 S2 PANSTARRS 20.1 262.707 32.53 24/12/2020 405P Lemmon 16.4 167.814 6.85 25/12/2020 P/2020 U2 PANSTARRS 20.8 276.560 7.34 26/12/2020 398P Boattini 14.5 195.297 5.53 30/12/2020 277P LINEAR 18.2 284.882 7.56 4/ 1/2021 98P Takamizawa 15.5 248.695 7.40 14/ 1/2021 A/2019 T1 19.6 640.547 237.26 17/ 1/2021 320P McNaught 21.8 145.463 5.44 17/ 1/2021 323P SOHO 8.7 10.930 4.15 17/ 1/2021 P/2020 S1 PANSTARRS 21.2 440.932 14.63 17/ 1/2021 C/2021 C4 ATLAS 19.0 673.825 --- 20/ 1/2021 C/2019 B3 PANSTARRS 18.1 1020.739 --- 20/ 1/2021 P/2020 T3 PANSTARRS 19.4 214.890 6.60 22/ 1/2021 102P Shoemaker 15.0 309.682 7.45 22/ 1/2021 C/2021 A2 NEOWISE 14.0 211.358 4025.54 23/ 1/2021 297P Beshore 20.9 350.623 6.39 24/ 1/2021 411P Christensen 18.2 364.808 14.03 25/ 1/2021 414P STEREO 14.9 78.754 4.67 25/ 1/2021 421P McNaught 18.3 246.329 11.43 28/ 1/2021 409P LONEOS-Hill 16.5 262.398 14.87 30/ 1/2021 P/2020 O3 PANSTARRS 21.7 623.355 10.03 5/ 2/2021 C/2020 U3 Rankin 20.5 340.516 526.73 7/ 2/2021 P/2010 H3 SOHO 14.7 12.589 5.29 8/ 2/2021 P/2020 V3 PANSTARRS 20.0 932.025 24.20 9/ 2/2021 265P LINEAR 18.0 224.255 8.77 10/ 2/2021 400P PANSTARRS 19.5 314.654 6.72 11/ 2/2021 P/2020 K9 Lemmon-PANSTARRS 19.9 426.289 8.60 12/ 2/2021 C/2021 C3 Catalina 18.7 340.542 503.64 13/ 2/2021 P/2014 U4 PANSTARRS 22.9 280.679 6.57 15/ 2/2021 415P Tenagra 19.0 495.754 8.35 15/ 2/2021 416P Scotti 19.4 327.587 8.04 19/ 2/2021 17P Holmes 17.2 311.282 6.93 19/ 2/2021 C/2021 J1 Maury-Attard 19.8 260.346 134.44 23/ 2/2021 246P NEAT 17.6 428.471 8.06 24/ 2/2021 P/2021 C2 PANSTARRS 21.9 731.541 29.45 27/ 2/2021 C/2021 D1 SWAN 13.7 134.916 956.85 1/ 3/2021 C/2020 R4 ATLAS 14.8 153.910 968.62 2/ 3/2021 C/2019 T3 ATLAS 18.6 889.622 --- 4/ 3/2021 206P Barnard-Boattini 22.8 234.089 6.51 8/ 3/2021 C/2019 O3 Palomar 17.8 1319.395 --- 10/ 3/2021 C/2021 B3 NEOWISE 18.4 323.154 206.52 11/ 3/2021 28P Neujmin 13.5 236.117 18.42 12/ 3/2021 C/2020 N1 PANSTARRS 14.2 197.558 --- 15/ 3/2021 C/2021 A10 NEOWISE 20.6 189.790 900.57 20/ 3/2021 191P McNaught 19.0 333.937 6.93 20/ 3/2021 C/2021 A4 NEOWISE 16.9 171.379 281.68 21/ 3/2021 P/2016 G1 PANSTARRS 19.3 304.810 4.15 24/ 3/2021 10P Tempel 10.5 211.298 5.35 24/ 3/2021 C/2020 F5 MASTER 15.1 647.188 --- 10/ 4/2021 C/2020 S8 Lemmon 17.1 353.629 4606.73 18/ 4/2021 16P Brooks 16.6 280.973 6.99 18/ 4/2021 C/2020 J1 SONEAR 14.8 501.928 --- 20/ 4/2021 C/2020 P3 ATLAS 18.6 1019.110 --- 22/ 4/2021 417P NEOWISE 17.8 223.208 6.13 22/ 4/2021 C/2019 T2 Lemmon 15.5 395.839 --- 4/ 5/2021 C/2021 A6 PANSTARRS 20.4 1186.135 --- 4/ 5/2021 C/2021 B2 PANSTARRS 20.5 375.949 6399.17 4/ 5/2021 C/2021 K1 ATLAS 17.3 373.662 45.43 5/ 5/2021 324P LaSagra 19.6 391.721 5.45 7/ 5/2021 120P Mueller 18.6 370.689 7.89 12/ 5/2021 142P Ge-Wang 17.0 375.933 11.18 12/ 5/2021 C/2016 Q2 PANSTARRS 18.7 1059.428 --- 14/ 5/2021 P/2014 W12 Gibbs 18.9 250.424 6.50 17/ 5/2021 158P Kowal-LINEAR 19.1 717.935 11.29 21/ 5/2021 C/2014 F3 Sheppard-Trujillo 17.4 851.234 59.46 22/ 5/2021 399P PANSTARRS 21.3 313.561 7.38 26/ 5/2021 201P LONEOS 16.6 182.119 6.14 27/ 5/2021 7P Pons-Winnecke 9.8 184.634 6.31 27/ 5/2021 P/2021 R3 PANSTARRS 21.8 377.788 7.35 30/ 5/2021 P/2021 P3 PANSTARRS 21.1 436.176 9.30 5/ 6/2021 C/2020 K5 PANSTARRS 13.9 229.738 --- 6/ 6/2021 P/2021 N1 ZTF 19.0 143.950 5.14 10/ 6/2021 P/2016 P1 PANSTARRS 19.6 339.623 5.71 15/ 6/2021 111P Helin-Roman-Crockett 19.7 554.651 8.45 17/ 6/2021 P/2016 BA14 PANSTARRS 21.9 151.519 5.26 22/ 6/2021 C/2019 F1 ATLAS-Africano 13.5 537.916 --- 23/ 6/2021 410P NEAT-LINEAR 20.8 485.746 17.08 5/ 7/2021 C/2020 T4 PANSTARRS 17.8 327.895 --- 11/ 7/2021 252P LINEAR 18.6 149.671 5.32 11/ 7/2021 C/2020 T2 Palomar 14.6 307.379 5485.48 13/ 7/2021 15P Finlay 12.3 148.403 6.56 15/ 7/2021 C/2021 A7 NEOWISE 15.2 294.364 --- 17/ 7/2021 P/2020 V4 Rankin 20.0 770.218 28.57 20/ 7/2021 413P Larson 18.9 320.122 7.15 22/ 7/2021 C/2021 G1 Leonard 22.4 512.171 651.80 24/ 7/2021 P/2021 L2 Leonard 20.0 290.004 8.16 25/ 7/2021 241P LINEAR 18.3 286.855 10.90 6/ 8/2021 P/2021 HS PANSTARRS 18.2 119.150 8.60 13/ 8/2021 C/2021 O1 Nishimura 10.6 117.761 --- 18/ 8/2021 106P Schuster 17.3 228.682 7.30 18/ 8/2021 332P Ikeya-Murakami 22.0 235.936 5.43 18/ 8/2021 332P-C Ikeya-Murakami 20.5 235.930 5.43 18/ 8/2021 332P-H Ikeya-Murakami 23.0 235.930 5.43 19/ 8/2021 C/2020 M5 ATLAS 16.6 449.446 --- 25/ 8/2021 193P LINEAR-NEAT 17.8 324.334 6.77 26/ 8/2021 P/2008 WZ96 LINEAR 17.3 276.565 6.51 27/ 8/2021 8P Tuttle 9.6 153.498 13.64 28/ 8/2021 C/2020 O2 Amaral 16.8 727.369 --- 30/ 8/2021 P/2021 N4 21.2 344.213 5.29 30/ 8/2021 P/2021 Q5 ATLAS 16.8 184.703 5.96 8/ 9/2021 4P Faye 11.7 242.180 7.48 8/ 9/2021 283P Spacewatch 20.1 318.971 8.42 9/ 9/2021 C/2021 K2 MASTER 18.9 817.795 --- 10/ 9/2021 108P Ciffreo 15.4 248.379 7.23 12/ 9/2021 284P McNaught 17.2 343.437 7.06 15/ 9/2021 C/2020 K6 Rankin 19.5 877.891 --- 17/ 9/2021 6P d'Arrest 12.3 202.650 6.54 20/ 9/2021 423P Lemmon 21.2 810.970 15.30 20/ 9/2021 425P Kowalski 18.5 432.349 15.92 22/ 9/2021 P/2004 R3 LINEAR-NEAT 22.1 530.664 10.47 22/ 9/2021 C/2021 J2 PANSTARRS 22.5 704.114 1263.54 25/ 9/2021 C/2020 PV6 PANSTARRS 15.6 343.427 269.33 1/10/2021 C/2020 H6 ATLAS 17.1 703.542 --- 5/10/2021 52P Harrington-Abell 19.0 265.870 7.60 13/10/2021 P/2021 R4 Wierzchos 20.4 348.348 13.43 17/10/2021 57P duToit-Neujmin-Delporte 17.3 257.325 6.40 17/10/2021 418P LINEAR 17.4 254.750 11.45 18/10/2021 110P Hartley 14.5 367.371 6.84 18/10/2021 C/2021 G3 PANSTARRS 21.4 775.086 --- 19/10/2021 342P SOHO -3.5 8.521 5.31 24/10/2021 282P 19.4 514.765 8.73 26/10/2021 P/2012 TK8 Tenagra 19.4 448.096 8.38 27/10/2021 419P PANSTARRS 19.3 380.466 6.61 31/10/2021 424P LaSagra 17.8 203.859 9.28 2/11/2021 67P Churyumov-Gerasimenko 10.0 181.106 6.43 2/11/2021 P/2005 L1 McNaught 17.3 470.128 7.93 3/11/2021 70P Kojima 17.2 300.541 7.05 3/11/2021 C/2018 U1 Lemmon 15.8 746.936 --- 12/11/2021 P/2021 N2 Fuls 17.6 568.068 18.28 13/11/2021 132P Helin-Roman-Alu 14.0 253.085 7.66 13/11/2021 C/2021 C6 Lemmon 19.7 489.384 --- 14/11/2021 C/2020 F7 Lemmon 17.9 797.672 18843.27 28/11/2021 C/2014 OG392 PANSTARRS 20.8 1491.414 42.78 2/12/2021 P/2011 A2 Scotti 19.6 232.570 5.48 8/12/2021 P/2007 R4 Garradd 18.7 292.850 14.46 14/12/2021 402P LINEAR 16.4 589.097 18.57 16/12/2021 173P Mueller 16.5 630.857 13.63 17/12/2021 P/2021 R1 PANSTARRS 21.3 730.889 24.54 18/12/2021 221P LINEAR 19.1 262.266 6.42 21/12/2021 C/2021 R2 PANSTARRS 20.5 1094.235 --- 30/12/2021 395P Catalina-NEAT 19.5 608.095 16.76 2/ 1/2022 P/2008 QP20 LINEAR-Hill 19.1 270.213 6.70 3/ 1/2022 C/2021 A1 Leonard 6.2 92.045 --- 8/ 1/2022 181P Shoemaker-Levy 13.1 173.510 7.63 9/ 1/2022 C/2019 L3 ATLAS 12.1 531.742 --- 10/ 1/2022 P/2021 R5 Rankin 19.8 497.400 10.52 11/ 1/2022 104P Kowal 15.4 160.551 5.75 13/ 1/2022 152P Helin-Lawrence 20.5 463.000 9.47 13/ 1/2022 205P Giacobini 16.7 228.898 6.67 13/ 1/2022 422P Christensen 18.7 464.532 15.88 25/ 1/2022 C/2021 Q3 ATLAS 18.6 778.934 653.53 2/ 2/2022 19P Borrelly 7.9 195.450 6.85 2/ 2/2022 C/2021 K3 Catalina 21.1 782.554 --- 3/ 2/2022 C/2021 D2 ZTF 15.7 440.760 --- 7/ 2/2022 86P Wild 18.6 338.193 6.84 7/ 2/2022 P/2011 W1 PANSTARRS 19.0 496.969 10.07 8/ 2/2022 259P Garradd 20.3 270.123 4.51 12/ 2/2022 348P PANSTARRS 18.6 326.710 5.59 13/ 2/2022 P/2015 Q1 Scotti 18.3 271.323 6.48 13/ 2/2022 C/2021 L3 Borisov 19.9 1265.308 --- 15/ 2/2022 97P Metcalf-Brewington 13.9 384.558 10.39 19/ 2/2022 P/2016 J1-B PANSTARRS 23.1 366.497 5.65 20/ 2/2022 P/2016 J1-A PANSTARRS 22.6 366.470 5.65 24/ 2/2022 C/2020 R2 PANSTARRS 19.3 701.910 8403.94 2/ 3/2022 288P 20.6 364.506 5.33 4/ 3/2022 9P Tempel 15.6 231.016 5.58 10/ 3/2022 382P Larson 18.1 660.090 16.38 18/ 3/2022 22P Kopff 9.6 232.248 6.38 19/ 3/2022 230P LINEAR 16.7 234.694 6.42 28/ 3/2022 P/1997 B1 Kobayashi 17.2 307.587 25.12 29/ 3/2022 325P Yang-Gao 15.9 214.278 6.61 31/ 3/2022 319P Catalina-McNaught 17.2 177.883 6.74 6/ 4/2022 A/2021 F1 18.9 148.946 --- 7/ 4/2022 135P Shoemaker-Levy 17.1 400.934 7.41 7/ 4/2022 C/2020 U4 PANSTARRS 18.2 800.924 --- 8/ 4/2022 274P Tombaugh-Tenagra 18.9 366.983 9.15 12/ 4/2022 99P Kowal 17.4 704.005 15.10 21/ 4/2022 C/2021 O3 PANSTARRS 5.0 42.969 --- 23/ 4/2022 44P Reinmuth 15.5 316.018 7.09 25/ 4/2022 45P Honda-Mrkos-Pajdusakova 9.4 83.353 5.33 25/ 4/2022 A/2021 E4 20.1 699.503 19605.53 27/ 4/2022 C/2020 U5 PANSTARRS 16.8 561.894 --- 12/ 5/2022 182P LONEOS 19.0 148.718 5.07 12/ 5/2022 286P Christensen 19.6 353.219 8.33 22/ 5/2022 420P Hill 18.3 417.126 12.98 29/ 5/2022 179P Jedicke 18.3 616.070 14.46 29/ 5/2022 P/2012 O3 McNaught 19.7 241.469 9.78 1/ 6/2022 113P Spitaler 19.3 320.440 7.10 1/ 6/2022 C/2021 P1 PANSTARRS 20.9 654.551 --- 6/ 6/2022 238P Read 20.6 354.290 5.64 9/ 6/2022 C/2019 T4 ATLAS 14.2 634.623 --- 11/ 6/2022 C/2021 E3 ZTF 11.5 265.904 --- 13/ 6/2022 148P Anderson-LINEAR 19.2 243.737 6.89 17/ 6/2022 C/2020 Y2 ATLAS 14.1 468.610 --- 19/ 6/2022 P/2013 G4 PANSTARRS 21.2 392.250 9.36 1/ 7/2022 337P WISE 18.4 247.448 5.96 7/ 7/2022 117P Helin-Roman-Alu 13.7 454.758 8.25 9/ 7/2022 169P NEAT 15.5 90.214 4.20 16/ 7/2022 C/2020 F2 ATLAS 18.7 1318.992 --- 17/ 7/2022 116P Wild 13.1 328.622 6.52 17/ 7/2022 272P NEAT 20.6 363.831 9.41 30/ 7/2022 C/2021 P4 ATLAS 11.3 161.597 --- 10/ 8/2022 100P Hartley 13.9 301.787 6.36 10/ 8/2022 127P Holt-Olmstead 17.6 330.592 6.42 11/ 8/2022 119P Parker-Hartley 13.1 348.273 7.44 12/ 8/2022 335P Gibbs 21.2 242.990 6.77 18/ 8/2022 P/2014 R5 Lemmon-PANSTARRS 19.5 355.741 8.17 19/ 8/2022 P/2011 Q3 McNaught 17.9 347.425 11.08 24/ 8/2022 107P Wilson-Harrington 7.5 144.659 4.25 25/ 8/2022 73P Schwassmann-Wachmann 11.4 145.529 5.44 27/ 8/2022 73P-T Schwassmann-Wachmann 11.4 145.501 5.44 28/ 8/2022 189P NEAT 19.2 181.266 5.06 2/ 9/2022 327P Van Ness 17.1 232.813 6.72 7/ 9/2022 255P Levy 9.3 126.765 5.05 7/ 9/2022 P/2015 X1 PANSTARRS 20.0 315.771 6.93 9/ 9/2022 157P Tritton 13.4 235.086 6.69 13/ 9/2022 41P Tuttle-Giacobini-Kresak 12.3 157.047 5.42 16/ 9/2022 P/2017 S8 PANSTARRS 19.8 253.184 4.64 16/ 9/2022 C/2020 R7 ATLAS 13.1 442.246 --- 26/ 9/2022 214P LINEAR 18.0 278.332 6.88 29/ 9/2022 224P LINEAR-NEAT 19.7 305.789 6.40 1/10/2022 51P-D Harrington 20.0 253.221 7.14 3/10/2022 51P-A Harrington 14.1 253.251 7.14 3/10/2022 408P Novichonok-Gerke 18.7 518.994 10.38 4/10/2022 211P Hill 18.4 348.278 6.68 7/10/2022 P/2007 S1 Zhao 18.0 377.246 7.46 24/10/2022 61P Shajn-Schaldach 14.5 317.789 7.08 29/10/2022 196P Tichy 17.2 325.115 7.42 16/11/2022 204P LINEAR-NEAT 17.5 274.825 6.80 16/11/2022 244P Scotti 17.4 586.600 10.83 21/11/2022 P/2010 TO20 LINEAR-Grauer 20.3 824.196 14.08 23/11/2022 118P Shoemaker-Levy 15.0 273.856 6.15 23/11/2022 176P LINEAR 18.6 385.666 5.71 29/11/2022 P/2007 A2 Christensen 19.9 418.666 15.93 2/12/2022 129P Shoemaker-Levy 19.7 587.003 8.87 7/12/2022 197P LINEAR 18.2 158.941 4.86 8/12/2022 80P Peters-Hartley 13.1 241.571 8.07 15/12/2022 81P Wild 11.5 239.081 6.41 19/12/2022 C/2017 K2 PANSTARRS 6.0 268.867 --- 6/ 1/2023 P/2013 YG46 Spacewatch 14.7 267.124 5.93 12/ 1/2023 285P LINEAR 19.1 257.291 9.57 21/ 1/2023 71P Clark 14.8 237.608 5.56 21/ 1/2023 C/2021 P2 PANSTARRS 19.9 758.736 --- 30/ 1/2023 263P Gibbs 7.6 185.593 5.32 31/ 1/2023 96P Machholz -0.6 17.453 5.27 2/ 2/2023 281P MOSS 19.5 603.557 10.76 9/ 2/2023 C/2020 S4 PANSTARRS 14.6 504.012 --- 11/ 2/2023 C/2021 C5 PANSTARRS 16.8 484.936 --- 27/ 2/2023 P/2017 S9 PANSTARRS 22.8 327.731 5.60 27/ 2/2023 P/2019 A4 PANSTARRS 20.3 357.144 4.23 12/ 3/2023 256P LINEAR 17.8 403.792 9.99 19/ 3/2023 P/2017 S5 ATLAS 19.9 324.843 5.64 30/ 3/2023 C/2019 U5 PANSTARRS 12.2 541.981 --- 3/ 4/2023 77P Longmore 15.2 351.160 6.89 7/ 4/2023 A/2019 O2 19.3 1448.498 434.35 11/ 4/2023 300P Catalina 16.2 124.477 4.44 19/ 4/2023 279P La Sagra 19.7 321.534 6.76 19/ 4/2023 P/2014 A3 PANSTARRS 20.5 520.091 9.93 21/ 4/2023 170P Christensen 19.6 437.309 8.60 5/ 5/2023 291P NEAT 19.8 382.424 9.64 8/ 5/2023 C/2020 V2 ZTF 10.9 333.356 --- 9/ 5/2023 C/2020 K1 PANSTARRS 12.5 459.882 --- 11/ 5/2023 P/2008 L2 Hill 18.6 348.740 14.80 13/ 5/2023 364P PANSTARRS 14.8 119.726 4.89 14/ 5/2023 237P LINEAR 16.6 297.163 6.58 21/ 5/2023 94P Russell 15.9 333.213 6.57 26/ 5/2023 39P Oterma 22.5 857.007 20.04 8/ 6/2023 C/2021 Q4 Fuls 19.2 1132.082 --- 15/ 6/2023 72P Denning-Fujikawa 15.7 117.063 8.95 27/ 6/2023 121P Shoemaker-Holt 21.3 558.409 9.82 3/ 7/2023 P/2012 WA34 Lemmon-PANSTARRS 21.5 461.684 10.26 4/ 7/2023 287P Christensen 20.3 454.194 8.50 5/ 7/2023 126P IRAS 12.5 256.155 13.39 12/ 7/2023 180P NEAT 17.3 373.946 7.59 13/ 7/2023 185P Petriew 15.7 139.365 5.45 20/ 7/2023 347P PANSTARRS 19.9 331.241 6.85 4/ 8/2023 280P Larsen 18.8 394.688 9.64 7/ 8/2023 199P Shoemaker 16.3 435.463 14.30 8/ 8/2023 225P LINEAR 19.7 197.549 6.97 21/ 8/2023 322P SOHO 6.1 7.663 3.97 31/ 8/2023 339P Gibbs 20.0 201.609 7.11 14/ 9/2023 P/2019 A7 PANSTARRS 19.5 399.724 5.69 29/ 9/2023 404P Bressi 19.1 621.572 10.56 29/ 9/2023 P/2005 E1 Tubbiolo 20.1 658.255 18.69 30/ 9/2023 79P du Toit-Hartley 18.1 167.824 5.05 10/10/2023 365P PANSTARRS 20.0 200.179 5.65 12/10/2023 103P Hartley 7.1 159.456 6.48 24/10/2023 310P Hill 18.2 361.378 8.54 11/11/2023 213P Van Ness 15.2 296.322 6.12 11/11/2023 358P PANSTARRS 22.7 358.492 5.58 13/11/2023 C/2019 E3 ATLAS 17.7 1542.969 --- 17/11/2023 P/2007 T2 Kowalski 16.1 97.776 5.32 22/11/2023 P/2004 V3 Siding Spring 20.5 591.326 19.07 1/12/2023 C/2021 A9 PANSTARRS 19.1 1160.640 --- 8/12/2023 147P Kushida-Muramatsu 20.6 464.162 8.03 19/12/2023 P/2014 W1 PANSTARRS 21.6 408.030 9.43 23/12/2023 62P Tsuchinshan 9.2 186.783 6.15 25/12/2023 26P Grigg-Skjellerup 14.7 162.198 5.23 26/12/2023 P/2018 P3 PANSTARRS 18.4 262.240 5.21 27/12/2023 226P Pigott-LINEAR-Kowalski 15.8 265.664 7.31 30/12/2023 326P Hill 20.1 414.639 8.19 7/ 1/2024 216P LINEAR 17.4 319.954 7.61 16/ 1/2024 P/2011 NO1 Elenin 16.9 186.342 12.99 25/ 1/2024 144P Kushida 10.4 208.190 7.47 31/ 1/2024 194P LINEAR 17.5 248.798 7.99 31/ 1/2024 207P NEAT 13.5 139.515 7.62 13/ 2/2024 219P LINEAR 17.3 352.629 6.97 13/ 2/2024 251P LINEAR 19.4 260.022 6.58 28/ 2/2024 P/2001 Q6 NEAT 16.4 210.586 22.43 2/ 3/2024 P/2019 A3 PANSTARRS 22.2 345.565 5.58 7/ 3/2024 125P Spacewatch 11.8 227.978 5.53 8/ 3/2024 227P Catalina-LINEAR 17.6 255.969 6.67 13/ 3/2024 150P LONEOS 15.8 262.710 7.64 19/ 3/2024 P/2013 R3 Catalina-PANSTARRS 19.9 328.840 5.28 19/ 3/2024 P/2013 R3-A Catalina-PANSTARRS 14.9 328.838 5.28 20/ 3/2024 P/2013 R3-B Catalina-PANSTARRS 14.9 328.840 5.28 21/ 3/2024 P/2010 T2 PANSTARRS 20.5 561.873 13.03 21/ 3/2024 C/2021 Q6 PANSTARRS 20.3 1304.049 --- 26/ 3/2024 89P Russell 18.8 332.148 7.27 29/ 3/2024 309P LINEAR 19.1 249.999 9.14 1/ 4/2024 355P LINEAR-NEAT 18.8 255.828 6.47 14/ 4/2024 130P McNaught-Hughes 15.8 272.644 6.22 20/ 4/2024 12P Pons-Brooks 4.4 116.978 70.98 21/ 4/2024 32P Comas Sola 14.3 296.978 9.57 24/ 4/2024 267P LONEOS 22.0 185.290 5.76 25/ 4/2024 212P NEAT 19.6 239.739 7.67 1/ 5/2024 299P Catalina-PANSTARRS 18.2 471.516 9.18 9/ 5/2024 133P Elst-Pizarro 19.4 399.210 5.63 13/ 5/2024 50P Arend 16.1 288.040 8.27 20/ 5/2024 46P Wirtanen 15.9 158.041 5.44 23/ 5/2024 202P Scotti 21.2 446.937 8.20 24/ 5/2024 192P Shoemaker-Levy 18.4 219.588 16.48 27/ 5/2024 349P Lemmon 19.0 374.873 6.76 4/ 6/2024 P/2004 DO29 Spacewatch-LINEAR 19.4 609.255 19.67 13/ 6/2024 154P Brewington 10.1 232.932 10.52 1/ 7/2024 13P Olbers 7.5 175.752 68.40 20/ 7/2024 362P 17.1 427.973 7.91 21/ 7/2024 P/2002 T6 NEAT-LINEAR 18.8 505.152 21.33 21/ 7/2024 P/2010 WK LINEAR 17.6 267.137 13.83 28/ 7/2024 328P LONEOS-Tucker 18.4 280.892 8.59 2/ 8/2024 338P McNaught 17.2 342.950 7.69 5/ 8/2024 146P Shoemaker-LINEAR 17.1 212.818 8.10 14/ 8/2024 30P Reinmuth 15.4 263.101 7.11 23/ 8/2024 208P McMillan 17.6 378.821 8.13 29/ 8/2024 345P LINEAR 18.7 470.439 8.11 3/ 9/2024 54P de Vico-Swift-NEAT 12.9 325.482 7.38 7/ 9/2024 P/2014 MG4 Spacewatch-PANSTARRS 18.1 555.301 11.22 9/ 9/2024 A/2021 G2 15.8 744.448 --- 3/10/2024 360P WISE 23.3 277.416 7.12 10/10/2024 37P Forbes 17.3 241.367 6.44 20/10/2024 253P PANSTARRS 17.7 303.858 6.45 21/10/2024 P/2012 US27 Siding Spring 16.0 272.234 11.74 24/10/2024 234P LINEAR 19.4 423.478 7.41 24/10/2024 P/2015 HG16 PANSTARRS 19.8 460.425 10.36 11/11/2024 363P Lemmon 21.1 253.209 6.70 12/11/2024 33P Daniel 21.5 335.161 8.26 17/11/2024 305P Skiff 18.8 212.927 10.01 18/11/2024 316P LONEOS-Christensen 21.4 550.701 9.12 29/11/2024 333P LINEAR 14.6 166.165 8.67 14/12/2024 276P Vorobjov 19.9 583.016 12.27 14/12/2024 P/2015 R2 PANSTARRS 20.9 367.233 9.51 24/12/2024 190P Mueller 17.4 302.987 8.71 26/12/2024 268P Bernardi 18.9 356.079 9.69 1/ 1/2025 242P Spahr 16.6 592.360 12.85 2/ 1/2025 136P Mueller 18.3 443.465 8.58 3/ 2/2025 236P LINEAR 18.7 273.923 7.20 17/ 2/2025 P/2011 UA134 Spacewatch-PANSTARR 22.3 310.878 13.28 5/ 3/2025 229P Gibbs 19.5 366.028 7.79 7/ 3/2025 302P Lemmon-PANSTARRS 20.8 492.340 8.84 11/ 3/2025 P/2010 H2 Vales 12.6 461.070 7.51 12/ 3/2025 P/2010 A3 Hill 17.0 242.371 14.99 25/ 3/2025 351P Wiegert-PANSTARRS 20.1 467.552 9.35 21/ 4/2025 341P Gibbs 19.1 375.288 8.89 24/ 5/2025 217P LINEAR 14.4 183.846 7.85 14/ 6/2025 P/2005 T5 Broughton 18.9 487.966 19.68 16/ 6/2025 65P Gunn 17.3 436.462 7.66 28/ 7/2025 195P Hill 18.6 668.028 16.59 5/ 8/2025 P/2003 QX29 NEAT 17.3 632.739 22.73 6/ 8/2025 43P Wolf-Harrington 16.4 364.222 8.96 27/ 8/2025 340P Boattini 20.7 457.327 8.76 7/ 9/2025 P/2017 R1 PANSTARRS 20.6 497.513 8.41 15/ 9/2025 248P Gibbs 18.8 324.102 14.67 24/10/2025 P/2016 A2 Christensen 19.2 518.635 10.36 26/10/2025 47P Ashbrook-Jackson 18.6 420.457 8.37 4/11/2025 172P Yeung 21.4 500.938 8.65 17/11/2025 40P Vaisala 15.4 274.423 11.02 24/11/2025 P/2015 TO19 Lemmon-PANSTARRS 20.1 437.085 9.72 24/12/2025 P/1999 XN120 Catalina 17.9 493.757 8.54 13/ 1/2026 42P Neujmin 20.0 302.314 10.76 17/ 1/2026 P/2005 SB216 LONEOS 17.4 572.209 19.06 18/ 2/2026 303P NEAT 20.1 369.350 11.34 25/ 3/2026 P/2007 C2 Catalina 18.6 553.212 18.49 13/ 4/2026 188P LINEAR-Mueller 18.3 382.054 9.15 31/ 5/2026 P/2004 FY140 LINEAR 18.2 610.285 10.86 1/ 7/2026 P/2009 B1 Boattini 19.5 367.883 17.49 12/ 7/2026 63P Wild 17.0 294.572 13.28 24/ 7/2026 295P LINEAR 17.4 304.610 12.22 17/ 8/2026 P/2005 T3 Read 20.9 936.460 20.89 4/ 9/2026 P/2010 U1 Boattini 19.4 731.513 16.60 23/10/2026 P/2015 X3 PANSTARRS 20.9 419.983 11.21 2/11/2026 275P Hermann 21.1 248.411 13.87 28/11/2026 161P Hartley-IRAS 10.8 190.809 21.47 3/12/2026 P/2009 Y2 Kowalski 17.5 356.521 16.76 31/12/2026 P/2007 K2 Gibbs 19.4 344.644 19.59 14/ 1/2027 P/2012 T2 PANSTARRS 20.3 719.229 13.73 20/ 1/2027 P/2004 A1 LONEOS 17.2 822.708 22.47 22/ 5/2027 P/2010 H4 Scotti 20.3 723.129 16.93 11/ 7/2027 P/2010 D2 WISE 24.9 551.658 17.41 12/ 7/2027 92P Sanguin 16.8 271.009 12.35 6/ 8/2027 P/2012 T3 PANSTARRS 19.4 352.229 15.26 17/ 8/2027 P/2004 V5 LINEAR-Hill 18.1 664.212 22.55 5/10/2027 P/2011 Y2 Boattini 18.8 271.089 15.59 10/10/2027 P/2013 T1 PANSTARRS 20.5 329.542 14.18 23/11/2027 P/2014 V1 PANSTARRS 20.1 381.680 12.83 1/ 1/2028 P/2011 N1 ASH 17.9 425.977 15.62 18/ 3/2028 P/2014 A2 Hill 19.8 314.541 14.43 26/ 5/2028 301P LINEAR-NEAT 18.3 356.157 13.75 6/ 6/2028 P/2010 UH55 Spacewatch 18.6 434.613 17.16 10/10/2028 P/2006 HR30 Siding Spring 12.1 184.100 21.83 16/10/2028 P/2010 C1 Scotti 20.6 787.486 18.93 15/ 1/2029 P/2005 S2 Skiff 19.6 961.813 22.68 13/ 2/2029 P/2011 FR143 Lemmon 19.3 563.845 17.97 4/ 3/2029 292P Li 18.9 375.831 15.09 8/ 3/2029 P/2013 J2 McNaught 18.7 318.665 15.52 18/ 3/2029 P/2012 F2 PANSTARRS 19.0 433.701 15.93 4/ 6/2029 P/2010 H5 Scotti 20.6 907.806 19.18 29/ 6/2029 P/2013 AL76 Catalina 21.4 304.853 16.56 15/12/2029 P/2009 Q5 McNaught 16.9 434.550 20.27 15/12/2030 P/2011 P1 McNaught 19.5 750.808 20.39 17/ 1/2031 P/2009 O3 Hill 18.9 362.756 21.65 26/ 1/2031 C/2014 UN271 Bernardinelli-Berns 16.0 1635.781 --- 18/ 5/2031 55P Tempel-Tuttle 10.4 145.546 33.32 13/ 6/2031 P/2009 T2 La Sagra 18.8 270.820 21.46 19/10/2031 P/2008 Y3 McNaught 18.4 667.624 22.83 19/12/2031 P/2008 O3 Boattini 18.6 374.180 23.57 23/ 5/2034 P/2005 T4 SWAN 13.9 98.470 28.64 4/10/2046 95P Chiron 16.1 1277.332 50.73 4/ 1/2092 35P Herschel-Rigollet 8.2 111.443 152.62 |
Distance moyenne de la Terre au Soleil = 1 UA = 149.597.870 km
La Période de révolution est donnée par la formule : Période= avec a= demi-grand axe de l'orbite en UA en application de la 3ème loi de Kepler : Les carrés des temps des révolutions sidérales sont proportionnels aux cubes des grands axes de leurs orbites.
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Au fur et à mesure qu'une comète s'approche du Soleil, une partie de la glace composant son noyau se vaporise, entraînant l'apparition d'une enveloppe gazeuse, la chevelure ou "coma". Les gaz et poussières expulsés, repoussés par le vent solaire et la pression du rayonnement solaire, composent alors les queues (de poussières et de plasma) de la comète, en direction opposée au Soleil.
A proximité du périhélie, la comète est à son maximum de dégazage et en conséquence, les queues de poussières et de plasma atteignent leur plus grande longueur.
Quelques comètes, subissant au maximum les effets gravitationnels du Soleil, ne résistent pas et se brisent en plusieurs morceaux au cours de leur approche au plus près du Soleil, devenant ainsi beaucoup plus lumineuses.
C'est à l'approche du Soleil que se forme une queue de poussières, |
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