Comets Waiting for First Observation

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Updated on June 14, 2017

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

Bright periodic comets not yet observed in this return. P/2004 FY140 ( LINEAR ) was fainter than 22 mag on 2015 June 15 (Erwin Schwab, Marco Micheli). 82P/Gehrels 3 was fainter than 20 mag on 2016 Nov. 8 (Jean-Francois Soulier). P/2010 A2 ( LINEAR ) was fainter than 20 mag on 2016 Nov. 30 (Jean-Francois Soulier). 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/2003 L1 ( Scotti ) was fainter than 21.5 mag on 2017 Mar. 24 (Erwin Schwab). P/2010 H2 ( Vales ) was fainter than 21.5 mag on 2017 Mar. 28 (Erwin Schwab). P/2011 CR42 ( Catalina ) was fainter than 19 mag on 2017 Apr. 28 (Jean-Francois Soulier). P/2006 F1 ( Kowalski ) was fainter than 20 mag on 2017 May 26 (Jean-Francois Soulier). 2017 June 24 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) 103P/Hartley 2 06 36 +16.1 12.3 21:04 (128,-20) 18:27 (103, -9) P/2004 T1 (LINEAR-NEAT) 00 39 -09.1 17.4 3:00 (301, 24) 5:37 (208, 61) P/2006 F1 (Kowalski) 18 48 -10.7 17.9 0:41 ( 0, 44) 0:41 (180, 66) P/2008 O2 (McNaught) 19 47 -28.9 18.3 1:39 ( 0, 26) 1:39 (180, 84) P/2004 FY140 (LINEAR) 19 56 -22.3 19.0 1:49 ( 0, 33) 1:49 (180, 77) P/1999 XN120 (Catalina) 06 01 +24.5 19.0 3:00 (224,-16) 5:37 (251,-17) P/2010 D1 (WISE) 00 13 +01.0 19.3 3:00 (298, 35) 5:37 (192, 53) P/2009 S2 (McNaught) 20 34 -12.9 19.3 2:27 ( 0, 42) 2:27 (180, 68) 236P/LINEAR 21 09 +05.5 19.4 3:00 (359, 61) 3:01 (180, 49) P/1998 VS24 (LINEAR) 01 33 +07.2 19.7 3:00 (278, 24) 5:37 (216, 41) P/2013 J4 (PanSTARRS) 09 41 +18.1 20.0 21:04 (101, 15) 18:27 (134, 23) P/2010 P4 (WISE) 00 43 -10.7 20.0 3:00 (301, 22) 5:37 (212, 62) P/2008 T4 (Hill) 23 05 -13.7 20.1 3:00 (325, 34) 4:57 (180, 69) P/2009 SK280 (Spacew.-Hill) 17 51 -40.5 20.2 23:39 ( 0, 14) 23:39 ( 0, 84) 31P/Schwassmann-Wachmann 2 02 28 +10.3 20.6 3:00 (267, 14) 5:37 (228, 31) P/2008 CL94 (Lemmon) 00 45 -00.0 20.7 3:00 (292, 29) 5:37 (205, 52) 223P/Skiff 17 56 -57.6 20.8 23:44 ( 0, -3) 23:44 ( 0, 67) P/2011 CR42 (Catalina) 09 13 +23.3 21.2 21:04 (109, 13) 18:27 (133, 14) P/2013 R3 (Catalina-PanST.) 13 52 -12.5 21.2 21:04 ( 26, 38) 19:41 (180, 68) 245P/WISE 11 20 -17.6 21.3 21:04 ( 57, 13) 18:27 (130, 66) P/2003 L1 (Scotti) 08 18 +11.5 21.3 21:04 (108, -5) 18:27 (114, 13) (343158) 2009 HC82 13 04 +23.7 21.4 21:04 ( 77, 59) 18:53 (180, 31) 82P/Gehrels 3 03 54 +20.4 21.4 3:00 (247, 3) 5:37 (237, 9) P/2005 Y2 (McNaught) 10 44 +25.9 21.5 21:04 (101, 32) 18:27 (152, 24) 228P/LINEAR 01 43 +08.5 21.6 3:00 (275, 22) 5:37 (218, 38) 107P/(4015) Wilson-Harring. 13 14 -10.5 21.6 21:04 ( 38, 36) 19:04 (180, 66) D/1952 B1 (Harrington-Wil.) 11 17 +19.4 21.9 21:04 ( 89, 36) 18:27 (158, 33) 255P/Levy 08 24 +09.5 22.0 21:04 (105, -5) 18:27 (114, 16) P/2010 H2 (Vales) 11 05 +19.1 22.0 21:04 ( 91, 33) 18:27 (154, 32) 147P/Kushida-Muramatsu 10 55 +09.3 22.1 21:04 ( 83, 26) 18:27 (147, 40) 246P/NEAT 05 40 +24.6 22.1 3:00 (227,-13) 5:37 (249,-13) 182P/LONEOS 10 57 +20.1 22.2 21:04 ( 93, 32) 18:27 (153, 30) P/2010 TO20 (LINEAR-Grauer) 10 45 +10.0 22.9 21:04 ( 85, 24) 18:27 (144, 38) 224P/LINEAR-NEAT 10 32 +19.6 23.7 21:04 ( 96, 26) 18:27 (146, 28) P/2010 A2 (LINEAR) 10 00 +09.7 26.2 21:04 ( 91, 15) 18:27 (133, 32) D/1978 R1 (Haneda-Campos) 07 47 +24.2 26.3 21:04 (122, -2) 18:27 (120, 0) 18D/Perrine-Mrkos 06 14 +16.7 26.5 21:04 (133,-23) 18:27 (101,-14)