Dates Of Last Observation Of Comets
The following tables list the date of the last confirmed astrometric observation reported to the Minor Planet Center (MPC) for each of the currently-observable comets. It is hoped that these tables will assist observers in planning a useful program of astrometric observation of these objects.Observers are reminded of the efficiency of making and reporting observations of specific objects on pairs of nearby nights, as the accuracy of an isolated single-night observation can be difficult to judge.
This document was last updated on 2012 Feb. 12.75 UT
Designation Last obs. Mag. Code C/1995 O1 (Hale-Bopp) 2010 12 04.31 23.4 T 809 P/1996 A1 (Jedicke) 1998 06 23.18 21.3 T 691 P/1996 R2 (Lagerkvist) 1997 01 12.72 587 P/1997 C1 (Gehrels) 1998 02 02.53 22.6 T 691 P/1997 T3 (Lagerkvist-Carsenty) 1999 02 13.23 19.4 T 693 P/1998 U3 (Jager) 1999 05 11.50 900 P/1998 VS24 (LINEAR) 1999 01 14.17 19.1 T 693 P/1998 Y2 (Li) 1999 04 08.45 402 P/1999 XN120 (Catalina) 2000 03 30.45 360 C/2002 VQ94 (LINEAR) 2010 05 05.32 18.5 T G96 P/2003 O2 (LINEAR) 2003 12 15.88 19.1 N 620 P/2004 A1 (LONEOS) 2007 08 07.35 20.3 N 474 P/2004 F1 (NEAT) 2004 04 21.05 19.6 T 204 P/2004 FY140 (LINEAR) 2004 07 12.39 18.8 N E12 P/2004 H3 (Larsen) 2004 06 13.56 360 P/2004 R3 (LINEAR-NEAT) 2004 11 16.99 20.4 T 204 P/2004 T1 (LINEAR-NEAT) 2005 03 07.47 360 P/2005 JN (Spacewatch) 2005 05 25.87 213 P/2005 J1 (McNaught) 2005 08 09.92 18.4 N A33 P/2005 JY126 (Catalina) 2007 01 13.93 204 P/2005 K3 (McNaught) 2006 02 04.41 18.2 T 349 P/2005 L1 (McNaught) 2005 09 15.45 16.6 T E12 C/2005 L3 (McNaught) 2012 01 26.61 19.8 N 372 P/2005 RV25 (LONEOS-Christensen) 2006 01 28.12 G96 P/2005 S2 (Skiff) 2005 11 08.95 19.6 N A32 P/2005 SB216 (LONEOS) 2009 06 23.17 21.8 T 291 P/2006 F1 (Kowalski) 2007 09 01.89 18.8 N 204 C/2006 OF2 (Broughton) 2010 05 11.76 0418 C51 C/2006 Q1 (McNaught) 2010 10 17.15 19.3 T 704 C/2006 S3 (LONEOS) 2012 01 25.86 D95 C/2006 W3 (Christensen) 2011 09 24.02 18.3 N I40 C/2007 D1 (LINEAR) 2011 12 30.51 20.0 T H06 C/2007 G1 (LINEAR) 2011 02 06.85 19.7 T 215 P/2007 H1 (McNaught) 2009 01 31.87 17.5 N J79 C/2007 Q3 (Siding Spring) 2010 04 19.12 17.0 N C10 P/2007 R1 (Larson) 2009 02 16.78 20.4 N A77 C/2007 S2 (Lemmon) 2011 05 09.50 18.7 T E03 C/2007 VO53 (Spacewatch) 2011 09 21.86 18.3 T 215 P/2008 CL94 (Lemmon) 2009 06 13.93 19.6 N 204 C/2008 E1 (Catalina) 2010 05 25.39 8768 C51 C/2008 FK75 (Lemmon-Siding Spring) 2012 02 10.43 D95 P/2008 J2 (Beshore) 2008 08 04.88 J70 P/2008 O2 (McNaught) 2009 12 09.80 19.4 N 130 C/2008 P1 (Garradd) 2011 02 04.91 204 C/2008 S3 (Boattini) 2012 01 18.77 18.4 N 958 C/2008 T2 (Cardinal) 2009 09 09.36 14.9 N E94 C/2009 F2 (McNaught) 2011 07 31.91 18.7 N A77 C/2009 F4 (McNaught) 2012 01 31.71 14.0 N D90 C/2009 F6 (Yi-SWAN) 2010 03 03.02 0475 C51 C/2009 K3 (Beshore) 2009 05 28.27 20.2 T H01 C/2009 K5 (McNaught) 2011 10 28.96 C32 C/2009 P1 (Garradd) 2012 02 12.07 11.0 N 939 C/2009 P2 (Boattini) 2011 08 27.90 18.7 T 215 C/2009 R1 (McNaught) 2010 06 29.87 8.9 N A71 C/2009 S3 (Lemmon) 2012 01 15.73 19.2 N 215 P/2009 SK280 (Spacewatch-Hill) 2011 12 23.14 21.5 N 950 C/2009 T1 (McNaught) 2011 10 04.05 19.2 T C32 C/2009 U5 (Grauer) 2011 04 02.28 19.7 T H45 C/2009 UG89 (Lemmon) 2012 01 30.07 18.9 T C32 C/2009 W2 (Boattini) 2010 11 08.53 21.3 N F65 C/2009 Y1 (Catalina) 2011 12 23.53 16.6 N D90 C/2010 B1 (Cardinal) 2012 02 01.58 17.9 T D90 C/2010 D3 (WISE) 2011 08 19.26 19.7 T 568 C/2010 D4 (WISE) 2011 08 19.25 20.3 T 568 C/2010 F3 (Scotti) 2011 05 24.23 19.6 T G96 C/2010 FB87 (WISE-Garradd) 2012 02 01.87 17.0 T B51 C/2010 G2 (Hill) 2012 02 11.81 15.6 N 939 C/2010 G3 (WISE) 2011 05 23.22 20.5 T H06 P/2010 H2 (Vales) 2010 07 14.84 19.1 N 160 P/2010 H5 (Scotti) 2011 04 11.42 22.3 T 291 C/2010 J2 (McNaught) 2011 06 25.96 20.3 T 561 P/2010 J5 (McNaught) 2011 08 26.53 20.6 N E07 P/2010 JC81 (WISE) 2012 02 08.02 18.0 N J01 C/2010 L3 (Catalina) 2011 06 27.95 20.2 T 561 C/2010 M1 (Gibbs) 2010 06 23.32 291 C/2010 R1 (LINEAR) 2012 01 30.19 18.0 N 958 P/2010 R2 (La Sagra) 2011 08 29.62 23.6 T 568 C/2010 S1 (LINEAR) 2012 02 10.44 14.4 T D95 P/2010 T2 (PANSTARRS) 2011 01 02.82 20.5 T A77 P/2010 TO20 (LINEAR-Grauer) 2011 12 26.71 21.0 T B18 P/2010 U1 (Boattini) 2011 12 28.17 21.2 T G96 P/2010 U2 (Hill) 2011 03 08.80 21.1 N 561 C/2010 U3 (Boattini) 2011 12 19.51 19.8 T D88 P/2010 UH55 (Spacewatch) 2012 02 05.91 18.7 T C32 P/2010 V1 (Ikeya-Murakami) 2011 01 22.85 349 P/2010 WK (LINEAR) 2011 04 21.83 19.0 N 160 C/2010 X1 (Elenin) 2011 09 07.37 E12 C/2011 A3 (Gibbs) 2011 10 24.05 15.4 T H06 P/2011 C2 (Gibbs) 2011 11 26.52 20.4 T G96 C/2011 F1 (LINEAR) 2012 02 12.06 15.1 N 939 C/2011 G1 (McNaught) 2012 02 09.09 17.6 T C71 C/2011 J2 (LINEAR) 2012 02 03.93 C32 P/2011 JB15 (Spacewatch-Boattini) 2011 10 02.43 18.3 N D90 C/2011 L1 (McNaught) 2011 06 09.68 17.3 N E07 C/2011 L2 (McNaught) 2012 01 28.49 20.9 N E07 C/2011 L3 (McNaught) 2011 11 24.66 20.3 N C32 C/2011 L4 (PANSTARRS) 2012 02 05.33 15.8 T I47 C/2011 M1 (LINEAR) 2011 08 02.42 14.1 T H06 P/2011 N1 (ASH) 2012 02 01.50 18.0 T D90 C/2011 N2 (McNaught) 2011 09 13.46 17.9 N D90 C/2011 O1 (LINEAR) 2011 11 03.45 17.0 N D90 P/2011 P1 (McNaught) 2012 01 25.84 18.9 T 215 C/2011 P2 (PANSTARRS) 2011 08 27.89 19.3 T 215 C/2011 Q2 (McNaught) 2011 10 19.42 13.9 T E03 P/2011 Q3 (McNaught) 2011 12 24.12 20.5 T G96 C/2011 Q4 (SWAN) 2012 01 27.14 19.5 N 561 C/2011 R1 (McNaught) 2012 02 01.52 15.4 T D90 P/2011 R3 (Novichonok-Gerke) 2012 01 25.80 18.4 T 215 C/2011 S2 (Kowalski) 2012 01 23.70 16.1 T E03 P/2011 U1 (PANSTARRS) 2012 01 26.79 19.7 T 215 P/2011 U2 (Bressi) 2012 01 16.89 19.2 N 204 C/2011 U3 (PANSTARRS) 2012 01 26.10 19.5 T H06 C/2011 UF305 (LINEAR) 2012 01 28.13 16.2 N C32 P/2011 VJ5 (Lemmon) 2012 02 04.19 18.9 T 215 P/2011 W1 (PANSTARRS) 2012 01 28.98 17.9 N C90 P/2011 W2 (Rinner) 2012 02 11.93 18.6 N J51 C/2011 W3 (Lovejoy) 2011 12 24.74 E12 P/2011 Y2 (Boattini) 2012 01 15.78 19.1 T 215 C/2011 Y3 (Boattini) 2012 01 17.89 20.8 N 104 C/2012 A1 (PANSTARRS) 2012 02 10.81 18.6 N B42 C/2012 A2 (LINEAR) 2012 02 10.45 17.3 T D95 P/2012 A3 2012 01 21.46 1110 C50 P/2012 B1 (PANSTARRS) 2012 02 10.36 18.1 T 703 C/2012 B3 (La Sagra) 2012 02 11.50 19.4 T 704 9P/Tempel 2010 05 23.94 18.3 N J38 10P/Tempel 2012 01 22.97 18.7 N B37 17P/Holmes 2010 02 23.53 21.6 N F65 21P/Giacobini-Zinner 2012 02 08.75 13.1 N C23 29P/Schwassmann-Wachmann 2012 02 05.07 16.6 N 213 30P/Reinmuth 2011 06 25.25 19.8 T G96 31P/Schwassmann-Wachmann 2011 06 13.18 19.4 T G96 36P/Whipple 2010 09 16.27 20.6 N F65 37P/Forbes 2011 10 12.41 16.6 T E03 41P/Tuttle-Giacobini-Kresak 2006 08 27.86 17.0 N J76 43P/Wolf-Harrington 2010 11 23.82 D95 45P/Honda-Mrkos-Pajdusakova 2006 06 06.87 D87 47P/Ashbrook-Jackson 2010 03 01.83 19.5 N A77 48P/Johnson 2010 07 09.64 5874 C51 49P/Arend-Rigaux 2012 02 12.03 16.8 N J51 58P/Jackson-Neujmin 1996 02 18.00 801 60P/Tsuchinshan 2012 02 11.13 20.5 T G96 62P/Tsuchinshan 2005 06 07.24 18.6 T 703 65P/Gunn 2010 11 25.09 14.9 T H10 69P/Taylor 2005 04 24.89 18.8 N 213 71P/Clark 2006 12 31.40 17.5 T 349 73P/Schwassmann-Wachmann 2010 12 17.92 20.8 T 188 74P/Smirnova-Chernykh 2010 08 07.82 18.8 N 160 78P/Gehrels 2012 02 11.79 14.3 N 939 81P/Wild 2010 10 10.44 349 82P/Gehrels 2010 01 21.53 21.6 N F65 88P/Howell 2010 11 14.37 20.1 T 704 91P/Russell 2006 08 23.05 19.1 N 204 96P/Machholz 2007 08 12.50 17.6 T 349 97P/Metcalf-Brewington 2000 12 23.13 19.1 T 704 105P/Singer Brewster 2006 09 28.01 19.0 N 204 111P/Helin-Roman-Crockett 2001 09 20.18 809 115P/Maury 2011 04 12.32 18.4 T H06 116P/Wild 2010 08 03.54 349 117P/Helin-Roman-Alu 2012 02 07.74 18.4 T D90 119P/Parker-Hartley 2006 04 09.17 18.6 T G96 120P/Mueller 2004 12 08.50 360 123P/West-Hartley 2012 02 04.26 18.8 N J01 128P-B/Shoemaker-Holt 2008 04 28.14 19.8 T G96 129P/Shoemaker-Levy 2010 09 05.38 21.1 T G96 130P/McNaught-Hughes 2011 12 28.12 19.1 T 704 131P/Mueller 2011 12 27.82 19.2 N 160 133P/Elst-Pizarro 138P/Shoemaker-Levy 2006 02 24.26 20.4 T G96 139P/Vaisala-Oterma 2009 03 21.22 21.4 T 291 142P/Ge-Wang 2010 11 13.32 19.6 N H10 143P/Kowal-Mrkos 2010 07 20.99 18.4 T 215 152P/Helin-Lawrence 2011 04 10.00 19.1 N B82 157P/Tritton 2010 06 02.87 17.9 N A77 158P/Kowal-LINEAR 2010 07 20.98 215 160P/LINEAR 2005 01 04.88 19.1 T 215 162P/Siding Spring 2011 04 09.22 19.3 T 704 163P/NEAT 2005 03 10.15 20.0 T 704 164P/Christensen 2012 02 09.95 15.6 N J08 166P/NEAT 2009 02 28.81 461 167P/CINEOS 2009 09 28.09 20.1 N 204 171P/Spahr 2006 02 06.07 941 173P/Mueller 2009 04 25.85 20.9 N B42 174P/Echeclus 176P/LINEAR 2012 01 26.75 19.4 T 215 182P/LONEOS 2007 04 26.17 19.9 T 693 183P/Korlevic-Juric 2009 06 13.85 18.2 N 204 186P/Garradd 2010 09 01.00 20.3 N 160 187P/LINEAR 2008 08 28.83 18.2 N A77 195P/Hill 2010 06 21.38 4778 C51 197P/LINEAR 2008 10 23.63 19.9 N 415 198P/ODAS 2006 03 24.25 20.1 N G96 200P/Larsen 2009 01 21.85 204 203P/Korlevic 2011 04 05.19 18.4 T H10 213P/Van Ness 2012 01 25.77 17.8 N 958 215P/NEAT 2010 12 04.51 18.2 T D96 219P/LINEAR 2011 01 09.91 20.6 N J47 223P/Skiff 2011 03 07.86 18.8 N 958 228P/LINEAR 2011 04 05.86 19.3 N 130 231P/LINEAR-NEAT 2011 06 27.91 18.7 T 215 237P/LINEAR 2011 11 02.34 21.7 T G96 238P/Read 2010 07 20.59 23.9 N 568 240P/NEAT 2012 01 05.49 17.7 T H06 242P/Spahr 2012 02 06.52 18.1 T D90 243P/NEAT 2011 12 26.88 18.9 N B42 244P/Scotti 2012 02 10.73 18.0 N B42 246P/NEAT 2012 02 12.03 15.4 N 939 248P/Gibbs 2011 03 21.81 19.1 T 215 253P/PANSTARRS 2011 12 30.54 17.8 N D90 254P/McNaught 2011 12 31.21 17.8 T 703 255P/Levy 2012 01 02.77 16.8 N C23 256P/LINEAR 2012 01 29.20 20.9 T H06 C/2012 C1 (McNaught) 2012 02 10.44 E10
This document was last updated on 2012 Feb. 12.75 UT
