Comets Waiting for First Observation

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Updated on August 18, 2019

Please see also the Weekly Information about Bright Comets and Comet Catalog.

Bright periodic comets not yet observed in this return. 261P/Larson was observed on 2019 July 1 at 16.8 mag by K. Hills, but not officially announced yet. P/2004 FY140 ( LINEAR ) was fainter than 22 mag on 2015 June 15 (Erwin Schwab, Marco Micheli). P/1999 XN120 ( Catalina ) was fainter than 21.5 mag on 2016 Nov. 28 (Erwin Schwab), fainter than 21.2 mag on 2016 Dec. 4 (Jean-Gabriel Bosch). P/2010 TO20 ( LINEAR-Grauer ) was fainter than 22.0 mag on 2017 Jan. 27 (Erwin Schwab). P/2006 F1 ( Kowalski ) was fainter than 20 mag on 2017 May 26 (Jean-Francois Soulier). P/1998 VS24 ( LINEAR ) was fainter than 21.5 mag on 2017 Aug. 20 (Erwin Schwab). P/2008 CL94 ( Lemmon ) was fainter than 21.0 mag on 2017 Nov. 8 (Erwin Schwab). 82P/Gehrels 3 was fainter than 20 mag on 2017 Dec. 23 (Jean-Francois Soulier). P/2002 EJ57 ( LINEAR ) was fainter than 20.0 mag on 2018 Jan. 12 (Toshihiko Ikemura, Hirohisa Sato), fainter than 19.5 mag on 2018 Feb. 23 (Toshihiko Ikemura, Hirohisa Sato). 115P/Maury was fainter than 20 mag on 2018 Mar. 10 (Jean-Francois Soulier). P/2011 V1 ( Boattini ) was fainter than 18.5 mag on 2018 May 21 (Toshihiko Ikemura, Hirohisa Sato). P/2013 R3 ( Catalina-PanSTARRS ) was fainter than 22 mag on 2018 Aug. 8 (Erwin Schwab). P/2003 F2 ( NEAT ) was fainter than 21.5 mag on 2019 Feb. 7 (Erwin Schwab). 198P/ODAS was fainter than 20 mag on 2019 Feb. 3 (Jean-Francois Soulier), fainter than 19.5 mag on 2019 Feb. 26 (Jean-Francois Soulier). P/2012 K3 ( Gibbs ) was fainter than 21.5 mag on 2019 Mar. 10 (Erwin Schwab). 289P/Blanpain was fainter than 18.3 mag on 2019 May 29 (Toshiyuki Takahashi). P/2014 C1 ( TOTAS ) was fainter than 20.0 mag on 2019 June 5 (Toshihiko Ikemura, Hirohisa Sato). 178P/Hug-Bell was fainter than 20 mag on 2019 June 23 (Jean-Francois Soulier). 36P/Whipple was fainter than 20.0 mag on 2019 July 25 (Roland Fichtl). 168P/Hergenrother was fainter than 21.5 mag on 2019 Aug. 4 (Erwin Schwab). 2019 August 30 at lat. 35 deg in the Northern/Sothern Hemisphere: Lat. 35 N deg Lat. 35 S deg Comet R.A. Decl. m1 Best Time(A, h) Best Time(A, h) 322P/SOHO 10 41 +07.3 9.3 19:58 (114,-18) 19:03 ( 88,-17) 168P/Hergenrother 04 47 +37.5 11.9 4:02 (255, 63) 4:58 (196, 15) 261P/Larson 03 26 +26.6 15.9 4:02 (302, 76) 4:56 (180, 28) 101P/Chernykh 00 04 -06.6 16.1 1:34 ( 0, 49) 1:34 (180, 61) P/2008 Y1 (Boattini) 06 25 +27.0 16.4 4:02 (262, 40) 4:58 (220, 15) 160P/LINEAR 18 28 -36.0 17.1 19:58 ( 1, 19) 19:55 ( 0, 89) P/2012 K3 (Gibbs) 18 39 -22.1 17.9 20:06 ( 0, 33) 20:06 (180, 77) P/2006 H1 (McNaught) 16 43 -37.1 17.9 19:58 ( 22, 14) 19:03 ( 75, 79) 76P/West-Kohoutek-Ikemura 05 58 +08.4 18.1 4:02 (287, 36) 4:58 (226, 34) P/2006 W1 (Gibbs) 18 46 -09.0 18.1 20:13 ( 0, 46) 20:13 (180, 64) 114P/Wiseman-Skiff 02 01 +39.5 18.1 3:31 (180, 85) 3:31 (180, 15) 155P/Shoemaker 3 06 37 +21.0 18.2 4:02 (268, 35) 4:58 (226, 18) P/2013 T2 (Schwartz) 18 16 -36.0 18.3 19:58 ( 3, 19) 19:44 ( 0, 89) 36P/Whipple 21 39 -05.7 18.7 23:05 ( 0, 49) 23:05 (180, 61) P/2007 T4 (Gibbs) 07 58 +36.5 18.7 4:02 (242, 26) 4:58 (228, -5) P/2002 T5 (LINEAR) 00 31 -28.0 19.2 2:01 ( 0, 27) 2:01 (180, 83) P/2009 SK280 (Spacewatch-Hill) 00 43 -09.8 19.4 2:13 ( 0, 45) 2:13 (180, 65) (196256) 2003 EH1 08 41 +35.1 19.4 4:02 (239, 18) 4:58 (235,-11) 2P/Encke 00 08 +07.6 19.4 1:38 ( 0, 63) 1:38 (180, 47) 254P/McNaught 17 47 -04.6 19.4 19:58 ( 17, 49) 19:14 (180, 60) 266P/Christensen 03 40 +21.6 19.6 4:02 (308, 70) 4:58 (183, 33) 99P/Kowal 1 08 14 +23.8 20.0 4:02 (252, 17) 4:58 (240, 0) P/2012 SB6 (Lemmon) 19 19 -35.7 20.1 20:46 ( 0, 19) 20:46 ( 0, 89) P/2008 CL94 (Lemmon) 04 05 +23.9 20.2 4:02 (293, 67) 4:58 (190, 30) P/2004 FY140 (LINEAR) 00 02 +01.6 20.3 1:32 ( 0, 57) 1:32 (180, 53) 178P/Hug-Bell 19 01 -26.7 20.3 20:28 ( 0, 28) 20:28 (180, 82) 124P/Mrkos 07 34 +48.4 20.3 4:02 (231, 34) 4:58 (216,-10) 294P/LINEAR 09 16 +17.9 20.4 4:02 (249, 2) 4:58 (253, -7) 163P/NEAT 08 04 +20.3 20.4 4:02 (257, 17) 4:58 (241, 5) P/2012 O2 (McNaught) 02 13 -24.5 20.5 3:43 ( 0, 31) 3:43 (180, 79) 198P/ODAS 10 22 +10.7 20.5 4:02 (245,-15) 4:58 (269,-17) P/2006 F1 (Kowalski) 02 04 -12.9 20.6 3:34 ( 0, 42) 3:34 (180, 68) P/2007 VQ11 (Catalina) 00 34 -01.1 20.6 2:04 ( 0, 54) 2:04 (180, 56) P/2014 MG4 (Spacewatch-PanSTARRS) 06 05 +30.2 20.6 4:02 (261, 45) 4:58 (214, 15) P/2006 R1 (Siding Spring) 03 59 +18.2 20.7 4:02 (305, 64) 4:58 (189, 36) 87P/Bus 09 07 +14.9 20.7 4:02 (253, 2) 4:58 (255, -4) P/2004 WR9 (LINEAR) 02 24 +13.7 20.8 3:54 ( 0, 69) 3:54 (180, 41) P/2011 R3 (Novichonok-Gerke) 18 08 -02.2 20.8 19:58 ( 9, 52) 19:35 (180, 57) 112P/Urata-Niijima 22 60 -48.0 20.9 0:31 ( 0, 7) 0:31 ( 0, 77) P/2013 EW90 (Tenagra) 05 16 -08.1 20.9 4:02 (310, 32) 4:58 (229, 53) 244P/Scotti 21 18 -17.3 21.0 22:45 ( 0, 38) 22:45 (180, 72) P/2013 R3 (Catalina-PanSTARRS) 06 09 +24.2 21.0 4:02 (268, 42) 4:58 (219, 20) P/2005 JD108 (Catalina-NEAT) 13 59 -12.3 21.0 19:58 ( 67, 10) 19:03 (101, 36) P/2011 U2 (Bressi) 17 44 -21.0 21.1 19:58 ( 13, 33) 19:12 (180, 76) P/1998 VS24 (LINEAR) 09 11 +14.2 21.1 4:02 (253, 0) 4:58 (256, -5) 2005 CR16 00 15 -05.8 21.1 1:46 ( 0, 49) 1:46 (180, 61) P/2015 F1 (PanSTARRS) 06 37 +25.0 21.3 4:02 (263, 37) 4:58 (224, 15) 282P/(323137) 2003 BM80 08 30 +23.8 21.3 4:02 (250, 14) 4:58 (242, -2) P/2003 F2 (NEAT) 11 22 +05.1 21.3 19:58 (104,-11) 19:03 ( 92, -6) P/2016 G1 (PanSTARRS) 10 52 +01.7 21.3 19:58 (106,-19) 19:03 ( 85,-10) 115P/Maury 12 45 -00.5 21.3 19:58 ( 87, 3) 19:03 (100, 15) 258P/PanSTARRS 07 48 +19.0 21.4 4:02 (260, 20) 4:58 (240, 8) 195P/Hill 21 58 +31.4 21.4 23:24 ( 0, 86) 23:24 (180, 24) P/2014 C1 (TOTAS) 14 33 -12.5 21.6 19:58 ( 61, 16) 19:03 (107, 43) 119P/Parker-Hartley 16 50 -19.8 21.6 19:58 ( 28, 30) 19:03 (143, 72) 82P/Gehrels 3 11 06 +04.8 21.7 19:58 (106,-14) 19:03 ( 90, -9) P/2000 R2 (LINEAR) 03 24 +08.0 21.7 4:02 (333, 61) 4:53 (180, 47) P/1996 R2 (Lagerkvist) 05 33 +24.3 21.7 4:02 (273, 50) 4:58 (211, 24) 311P/PanSTARRS 17 46 -22.1 21.7 19:58 ( 12, 32) 19:13 (180, 77) 289P/Blanpain 23 46 -16.2 21.8 1:17 ( 0, 39) 1:17 (180, 71) P/1999 XN120 (Catalina) 12 50 -10.0 21.9 19:58 ( 79, -2) 19:03 ( 92, 21) 121P/Shoemaker-Holt 2 20 53 -33.4 22.0 22:20 ( 0, 22) 22:20 (180, 88) P/2002 EJ57 (LINEAR) 14 06 -17.5 22.0 19:58 ( 62, 8) 19:03 ( 97, 41) 9P/Tempel 1 05 44 +24.4 22.5 4:02 (271, 47) 4:58 (213, 22) P/2010 TO20 (LINEAR-Grauer) 14 03 -12.4 22.6 19:58 ( 66, 11) 19:03 (102, 37) P/2012 O1 (McNaught) 05 42 +19.8 23.1 4:02 (277, 46) 4:58 (215, 27) P/1999 RO28 (LONEOS) 06 58 +17.1 23.2 4:02 (269, 29) 4:58 (233, 18) (394130) 2006 HY51 12 42 +09.1 23.3 19:58 ( 96, 7) 19:03 (107, 8) P/2011 V1 (Boattini) 05 24 +25.3 23.3 4:02 (273, 52) 4:58 (208, 24) 324P/La Sagra 12 19 -19.8 23.8 19:58 ( 75,-14) 19:03 ( 79, 20) 2014 XK6 07 58 +31.8 24.3 4:02 (247, 24) 4:58 (232, -2) 354P/LINEAR 01 53 +18.0 25.0 3:23 ( 0, 73) 3:23 (180, 37)