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 2013 May 21.71 UT
Designation Last obs. Mag. Code C/1995 O1 (Hale-Bopp) 2010 12 04.31 23.4 T 809 P/1996 R2 (Lagerkvist) 1997 01 12.72 587 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 D1 (Hermann) P/1999 XN120 (Catalina) 2000 03 30.45 360 P/2000 QJ46 (LINEAR) 2000 11 19.19 699 P/2002 AR2 (LINEAR) 2002 04 07.88 118 C/2002 VQ94 (LINEAR) 2010 05 05.32 18.5 T G96 P/2003 S1 (NEAT) 2005 03 12.15 705 P/2003 U2 (LINEAR) 2013 05 19.43 H06 P/2003 U3 (NEAT) 2004 01 17.52 360 P/2004 A1 (LONEOS) 2007 08 07.35 20.3 N 474 P/2004 FY140 (LINEAR) 2004 07 12.39 18.8 N E12 P/2005 L1 (McNaught) 2005 09 15.45 16.6 T E12 C/2005 L3 (McNaught) 2013 03 15.96 20.2 T 215 P/2005 L4 (Christensen) 2006 01 07.07 G96 P/2005 RV25 (LONEOS-Christensen) 2006 01 28.12 G96 P/2005 SB216 (LONEOS) 2009 06 23.17 21.8 T 291 P/2006 F1 (Kowalski) 2007 09 01.89 18.8 N 204 P/2006 F4 (Spacewatch) 2006 05 31.89 19.5 T 561 P/2006 R2 (Christensen) 2007 01 08.10 21.1 T G96 P/2006 S1 (Christensen) 2006 12 16.21 G96 C/2006 S3 (LONEOS) 2013 05 20.90 15.4 N 958 C/2006 W3 (Christensen) 2011 09 24.02 18.3 N I40 P/2007 H1 (McNaught) 2013 05 16.70 20.5 N D90 P/2007 H3 (Garradd) 2007 09 23.76 17.1 T 215 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 P/2007 T2 (Kowalski) 2008 01 18.33 G96 P/2008 CL94 (Lemmon) 2009 06 13.93 19.6 N 204 C/2008 FK75 (Lemmon-Siding Spring) 2013 02 03.06 19.1 N H45 P/2008 J2 (Beshore) 2008 08 04.88 J70 P/2008 O2 (McNaught) 2009 12 09.80 19.4 N 130 C/2008 S3 (Boattini) 2013 01 13.73 17.1 N C23 C/2009 F2 (McNaught) 2012 07 23.83 20.0 N D05 C/2009 F4 (McNaught) 2013 03 20.04 17.3 N I47 C/2009 P1 (Garradd) 2013 04 21.85 16.4 N 958 C/2009 P2 (Boattini) 2011 08 27.90 18.7 T 215 C/2009 S3 (Lemmon) 2013 02 19.12 20.4 T 291 P/2010 A2 (LINEAR) 2010 04 17.83 19.8 N B82 C/2010 B1 (Cardinal) 2012 10 03.47 21.2 N E07 C/2010 G2 (Hill) 2013 03 06.41 20.2 T Q62 P/2010 H2 (Vales) 2010 07 14.84 19.1 N 160 P/2010 H5 (Scotti) 2011 04 11.42 22.3 T 291 P/2010 J5 (McNaught) 2011 08 26.53 20.6 N E07 P/2010 JC81 (WISE) 2013 03 16.40 20.8 T G96 C/2010 L3 (Catalina) 2013 04 08.33 20.4 T H06 C/2010 M1 (Gibbs) 2010 06 23.32 291 C/2010 R1 (LINEAR) 2013 05 15.90 18.3 N I72 C/2010 S1 (LINEAR) 2013 05 20.04 14.1 N 958 P/2010 TO20 (LINEAR-Grauer) 2012 11 17.89 21 T C32 C/2010 U3 (Boattini) 2013 02 08.81 19.0 N A24 P/2010 UH55 (Spacewatch) 2012 03 23.98 17.7 N J24 P/2010 V1 (Ikeya-Murakami) 2011 01 22.85 349 P/2011 C2 (Gibbs) 2013 04 09.49 21.0 T F51 C/2011 F1 (LINEAR) 2013 05 02.84 16.0 N D90 P/2011 FR143 (Lemmon) 2012 06 10.52 20.0 N E07 C/2011 J2 (LINEAR) 2013 05 20.91 16.5 N 958 P/2011 JB15 (Spacewatch-Boattini) 2012 08 15.17 19.7 T H06 C/2011 KP36 (Spacewatch) 2013 05 05.10 19.1 N 130 C/2011 L4 (PANSTARRS) 2013 05 20.94 12.3 N 511 P/2011 N1 (ASH) 2013 02 05.23 21.0 T H06 C/2011 O1 (LINEAR) 2013 03 04.42 16.1 T Q62 C/2011 R1 (McNaught) 2013 05 20.90 17.1 N 511 P/2011 R3 (Novichonok-Gerke) 2013 04 08.48 18.9 N 372 P/2011 S1 (Gibbs) 2013 02 05.12 291 P/2011 U2 (Bressi) 2013 04 09.26 21.2 T F51 C/2011 UF305 (LINEAR) 2013 04 22.44 17.1 T D95 P/2011 W1 (PANSTARRS) 2013 02 09.42 21.8 T F51 C/2011 Y3 (Boattini) 2012 02 20.81 20.2 N C32 C/2012 A1 (PANSTARRS) 2013 03 13.13 19.1 T H06 C/2012 A2 (LINEAR) 2013 03 29.43 D95 P/2012 B1 (PANSTARRS) 2013 05 15.89 16.1 N I72 C/2012 BJ98 (Lemmon) 2013 02 16.51 19.2 T H06 C/2012 C1 (McNaught) 2013 03 04.41 17.0 T Q62 C/2012 CH17 (MOSS) 2012 08 27.84 19.0 N A77 C/2012 E1 (Hill) 2013 04 09.34 20.3 T H06 P/2012 F2 (PANSTARRS) 2013 04 14.18 17.1 N J24 C/2012 F3 (PANSTARRS) 2013 05 03.96 18.4 N B96 P/2012 F5 (Gibbs) 2013 05 12.61 568 C/2012 F6 (Lemmon) 2013 05 20.14 10.9 N 958 C/2012 J1 (Catalina) 2013 03 21.84 15.0 N 958 C/2012 K1 (PANSTARRS) 2013 05 20.01 15.2 N 958 C/2012 K5 (LINEAR) 2013 04 12.40 18.4 N E10 C/2012 K6 (McNaught) 2013 05 18.26 15.7 N H15 C/2012 K8 (Lemmon) 2013 04 20.15 18.3 N 958 C/2012 L1 (LINEAR) 2013 04 13.87 18.3 N J24 C/2012 L2 (LINEAR) 2013 05 05.45 367 C/2012 LP26 (Palomar) 2013 05 19.37 19.1 T G96 C/2012 OP (Siding Spring) 2013 05 15.03 18.6 T 215 C/2012 Q1 (Kowalski) 2013 01 06.07 18.4 T H06 C/2012 S1 (ISON) 2013 05 19.15 17.2 T 291 C/2012 S3 (PANSTARRS) 2013 05 15.42 17.4 N H47 C/2012 S4 (PANSTARRS) 2013 01 29.78 18.0 N 958 P/2012 SB6 (Lemmon) 2013 02 06.16 20.9 T 291 P/2012 T2 (PANSTARRS) 2012 11 13.17 20.6 T H06 C/2012 T5 (Bressi) 2013 03 21.20 17.8 N 958 P/2012 TK8 (Tenagra) 2013 02 06.14 21.0 N 291 C/2012 U1 (PANSTARRS) 2013 01 07.79 461 P/2012 US27 (Siding Spring) 2013 04 18.81 16.2 N 585 C/2012 V1 (PANSTARRS) 2013 01 07.77 19.8 N 511 C/2012 V2 (LINEAR) 2013 05 05.46 367 C/2012 X1 (LINEAR) 2013 05 15.92 17.4 N 958 C/2012 X2 (PANSTARRS) 2013 04 22.38 18.4 T Q62 C/2012 Y1 (LINEAR) 2013 04 03.46 18.5 N 372 C/2012 Y3 (McNaught) 2013 04 22.37 18.0 T Q62 C/2013 A1 (Siding Spring) 2013 05 07.29 17.7 N 474 P/2013 A2 (Scotti) 2013 05 02.24 21.9 T 291 C/2013 B2 (Catalina) 2013 05 20.16 18.5 T 703 C/2013 C2 (Tenagra) 2013 04 15.89 18.8 T 215 C/2013 D1 (Holvorcem) 2013 05 10.78 18.9 T C32 C/2013 E1 (McNaught) 2013 05 10.76 18.6 T C32 C/2013 E2 (Iwamoto) 2013 05 17.78 367 C/2013 F1 (Boattini) 2013 05 14.29 17.9 T H45 C/2013 F2 (Catalina) 2013 05 01.92 19.0 N 212 C/2013 F3 (McNaught) 2013 05 20.13 18.1 N 958 C/2013 G1 (Kowalski) 2013 05 20.28 18.1 T 691 C/2013 G2 (McNaught) 2013 05 07.61 474 C/2013 G3 (PANSTARRS) 2013 05 07.57 20.3 N 372 P/2013 G4 (PANSTARRS) 2013 05 08.45 20.2 N 474 C/2013 G5 (Catalina) 2013 05 19.01 17.7 N B50 C/2013 G6 (Lemmon) 2013 05 18.66 16.7 N D90 C/2013 G7 (McNaught) 2013 05 18.31 17.2 T 703 C/2013 G8 (PANSTARRS) 2013 05 15.04 17.8 T 215 C/2013 G9 (Tenagra) 2013 05 15.00 18.6 T 215 C/2013 H1 (La Sagra) 2013 05 20.09 17.9 N 958 C/2013 H2 (Boattini) 2013 05 15.02 18.4 T 215 2P/Encke 2012 10 13.84 20.2 N 586 4P/Faye 2008 04 29.88 20.5 N A77 9P/Tempel 2012 12 12.88 21.9 N C10 10P/Tempel 2013 03 03.94 20.3 N C10 16P/Brooks 2009 03 03.14 19.5 T 691 17P/Holmes 2013 05 05.71 Q62 21P/Giacobini-Zinner 2013 04 01.45 20.5 N E07 26P/Grigg-Skjellerup 2013 04 15.84 18.6 T 215 29P/Schwassmann-Wachmann 2013 05 20.25 16.6 N H47 31P/Schwassmann-Wachmann 2012 05 21.39 21.5 T F51 32P/Comas Sola 2006 05 30.23 17.0 T G96 36P/Whipple 2013 03 04.80 20.2 N A32 44P/Reinmuth 2010 02 20.98 20 N 204 46P/Wirtanen 2008 06 23.89 17.7 N 204 47P/Ashbrook-Jackson 2012 03 22.22 21.5 T G96 49P/Arend-Rigaux 2013 05 15.01 19.3 T 215 52P/Harrington-Abell 2007 03 14.64 19.9 T E12 60P/Tsuchinshan 2012 05 28.88 15.8 N J38 61P/Shajn-Schaldach 2010 05 10.16 21.5 T G96 63P/Wild 2013 05 20.88 15.8 N 958 65P/Gunn 2013 02 20.80 20.8 N C10 74P/Smirnova-Chernykh 2012 09 06.45 19.2 N E07 76P/West-Kohoutek-Ikemura 2013 03 01.09 18.9 T H06 77P/Longmore 2011 09 27.17 19.9 T H15 78P/Gehrels 2013 04 17.93 18.9 N 511 79P/du Toit-Hartley 2013 04 04.25 21.5 T F51 82P/Gehrels 2011 03 23.96 204 84P/Giclas 2007 03 17.90 19.6 N 213 87P/Bus 2007 05 20.54 17.6 T 349 91P/Russell 2012 07 07.38 21.2 N E07 97P/Metcalf-Brewington 2012 12 31.76 18.9 T 900 98P/Takamizawa 2013 05 19.01 18.1 N C23 102P/Shoemaker 2013 04 16.77 19.5 T Q62 110P/Hartley 2009 04 29.87 19.7 N A77 111P/Helin-Roman-Crockett 2012 12 21.45 21.7 N 291 112P/Urata-Niijima 2007 03 23.51 408 114P/Wiseman-Skiff 2013 03 14.81 16.5 N C23 116P/Wild 2010 08 03.54 349 117P/Helin-Roman-Alu 2013 05 18.98 15.4 N C23 119P/Parker-Hartley 2012 12 12.70 19.3 N A32 120P/Mueller 2012 10 19.80 19.7 T 215 123P/West-Hartley 2012 06 16.01 18.0 N J24 124P/Mrkos 2012 09 13.86 188 125P/Spacewatch 2013 05 20.60 19.1 T F51 128P-B/Shoemaker-Holt 2008 04 28.14 19.8 T G96 129P/Shoemaker-Levy 2013 01 07.29 20.9 T F51 131P/Mueller 2013 02 09.93 20.5 N A24 132P/Helin-Roman-Alu 2006 01 22.11 17.7 T 703 133P/Elst-Pizarro 134P/Kowal-Vavrova 2013 04 30.75 19.5 N C32 136P/Mueller 2009 03 24.21 291 139P/Vaisala-Oterma 2009 03 21.22 21.4 T 291 143P/Kowal-Mrkos 2012 09 18.37 22.3 T G96 152P/Helin-Lawrence 2013 04 11.78 18.1 T Q62 154P/Brewington 2003 03 29.42 14.0 T 340 156P/Russell-LINEAR 2008 04 02.02 20.0 N 204 157P/Tritton 2010 06 02.87 17.9 N A77 158P/Kowal-LINEAR 2013 01 10.24 20.4 T F51 159P/LONEOS 2006 02 18.08 941 160P/LINEAR 2012 12 12.74 18.9 T 106 162P/Siding Spring 2013 04 12.53 20.1 T F51 164P/Christensen 2012 05 18.20 18.6 T 703 166P/NEAT 2009 02 28.81 461 167P/CINEOS 2011 10 19.31 22.1 T F51 169P/NEAT 2013 05 15.54 20.6 T F51 170P/Christensen 2008 02 27.24 21.1 T G96 171P/Spahr 2012 04 12.12 17.3 T H06 173P/Mueller 2009 04 25.85 20.9 N B42 174P/Echeclus 175P/Hergenrother 2013 05 15.88 17.0 N I72 176P/LINEAR 2013 02 10.02 19.9 N C10 178P/Hug-Bell 2007 04 09.12 20.1 T H36 181P/Shoemaker-Levy 2007 01 27.87 204 183P/Korlevic-Juric 2009 06 13.85 18.2 N 204 184P/Lovas 2007 01 20.82 18.4 N J76 186P/Garradd 2013 02 09.78 18.3 N A24 187P/LINEAR 2008 08 28.83 18.2 N A77 191P/McNaught 2008 04 07.81 19.6 T 215 197P/LINEAR 2013 04 22.75 17.6 T Q62 198P/ODAS 2011 07 30.15 18.6 N 958 200P/Larsen 2009 01 21.85 204 203P/Korlevic 2011 05 31.19 19.1 N H15 213P/Van Ness 2012 10 23.43 20.1 N 850 219P/LINEAR 2011 01 09.91 20.6 N J47 228P/LINEAR 2012 05 17.92 19.6 T 215 231P/LINEAR-NEAT 2012 07 20.69 188 237P/LINEAR 2011 11 02.34 21.7 T G96 242P/Spahr 2013 03 30.89 18.2 N J24 244P/Scotti 2013 05 08.16 18.4 T G96 246P/NEAT 2013 05 17.74 14.9 T D88 256P/LINEAR 2013 05 19.24 18.4 T 703 257P/Catalina 2013 05 15.05 17.8 T 215 259P/Garradd 2012 04 15.52 568 260P/McNaught 2013 03 14.87 18.0 N C23 261P/Larson 2013 02 06.11 18.2 T 703 262P/McNaught-Russell 2013 04 22.39 17.9 T Q62 266P/Christensen 2013 02 10.46 349 269P/Jedicke 2013 02 10.24 21.5 T F51 270P/Gehrels 2013 03 13.13 19.4 T G96 271P/van Houten-Lemmon 2012 11 13.87 20.0 N C10 272P/NEAT 2013 04 29.19 19.8 T 703 273P/Pons-Gambart 2013 05 18.95 17.2 N C23 274P/Tombaugh-Tenagra 2013 05 09.89 17.7 N C23 275P/Hermann 2013 03 18.54 21.2 N E07 276P/Vorobjov 2013 03 04.25 20.2 T F51 277P/LINEAR 2013 01 18.10 20.2 N 291 278P/McNaught 2013 05 16.25 18.3 T 703 280P/Larsen 2013 05 04.91 17.9 N 212 281P/MOSS 2013 05 03.89 20.2 N 511 P/2013 J2 (McNaught) 2013 05 12.77 18.0 T 372 C/2013 J3 (McNaught) 2013 05 18.69 17.6 N D90 P/2013 J4 (PANSTARRS) 2013 05 12.19 20.2 T G96 P/2013 EW90 (Tenagra) 2013 05 14.92 19.5 T 215 C/2013 J5 (Boattini) 2013 05 20.39 19.6 T 291 C/2013 K1 (Christensen) 2013 05 20.46 711 C/2013 J6 (Catalina) 2013 05 20.95 20.0 T K33
This document was last updated on 2013 May 21.71 UT
