Comets Waiting for First Observation

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 Updated on July 21, 2017

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

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Bright periodic comets not yet observed in this return.

  • 185P/Petriew was observed on 2017 July 18 at 21.5 mag by Jean-Francois Soulier, but not officially announced yet.

  • 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/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).
  • P/2008 O2 ( McNaught ) was fainter than 21.5 mag on 2017 June 22 (Erwin Schwab). 

2017 July 23 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              08 04 +11.9  14.0   3:22 (235,-23)   5:33 (264,-13)
P/2006 F1 (Kowalski)        18 31 -12.7  18.0  22:26 (  0, 42)  22:26 (180, 68)
P/2008 O2 (McNaught)        19 27 -29.1  18.2  23:21 (  0, 26)  23:21 (180, 84)
24P/Schaumasse              05 08 +19.3  18.6   3:22 (256, 14)   5:33 (232, 16)
P/2010 D1 (WISE)            00 36 +01.9  18.9   3:22 (329, 53)   4:33 (180, 53)
P/1999 XN120 (Catalina)     06 46 +23.7  19.0   3:22 (239, -2)   5:33 (244, -4)
P/2004 FY140 (LINEAR)       19 39 -23.0  19.0  23:34 (  0, 32)  23:34 (180, 78)
(3200) Phaethon             04 50 +31.4  19.3   3:22 (247, 24)   5:33 (221,  9)
P/2010 P4 (WISE)            01 21 -02.3  19.4   3:22 (318, 44)   5:18 (180, 57)
P/1998 VS24 (LINEAR)        01 57 +08.8  19.4   3:22 (298, 46)   5:33 (188, 46)
62P/Tsuchinshan 1           04 49 +17.4  19.5   3:22 (260, 17)   5:33 (229, 20)
P/2008 T4 (Hill)            23 09 -14.3  19.6   3:07 (  0, 41)   3:07 (180, 69)
P/2013 J4 (PanSTARRS)       10 41 +12.3  20.0  20:50 (102,  4)  18:40 (118, 16)
P/2009 SK280 (Spacew.-Hill) 17 32 -40.4  20.2  21:27 (  0, 15)  21:27 (  0, 85)
253P/PanSTARRS              18 47 -18.3  20.3  22:41 (  0, 37)  22:41 (180, 73)
31P/Schwassmann-Wachmann 2  02 49 +11.7  20.4   3:22 (284, 38)   5:33 (204, 40)
P/2008 CL94 (Lemmon)        00 50 +00.4  20.5   3:22 (325, 50)   4:47 (180, 55)
159P/LONEOS                 02 14 -03.9  20.5   3:22 (305, 34)   5:33 (198, 58)
P/2012 T1 (PanSTARRS)       22 01 -25.9  20.7   1:59 (  0, 29)   1:59 (180, 81)
223P/Skiff                  17 25 -55.9  20.8  21:20 (  0, -1)  21:20 (  0, 69)
59P/Kearns-Kwee             23 33 +03.2  20.9   3:22 (356, 58)   3:31 (180, 52)
P/2011 CR42 (Catalina)      09 53 +19.8  21.0  20:50 (115, -1)  18:40 (116,  2)
37P/Forbes                  10 52 +01.8  21.1  20:50 ( 92,  0)  18:40 (111, 25)
250P/Larson                 04 52 +19.5  21.1   3:22 (258, 17)   5:33 (229, 18)
82P/Gehrels 3               04 28 +21.8  21.2   3:22 (259, 24)   5:33 (222, 20)
245P/WISE                   11 52 -19.4  21.3  20:50 ( 66,  0)  18:40 (101, 49)
P/2002 T5 (LINEAR)          21 34 -23.5  21.3   1:32 (  0, 32)   1:32 (180, 78)
P/2002 EJ57 (LINEAR)        04 45 +26.6  21.3   3:22 (252, 22)   5:33 (223, 14)
P/2003 L1 (Scotti)          08 39 +10.4  21.3  20:50 (120,-20)  18:40 ( 98, -7)
228P/LINEAR                 01 58 +10.1  21.3   3:22 (296, 47)   5:33 (188, 44)
P/2013 R3 (Catalina-PanST.) 13 59 -13.0  21.5  20:50 ( 49, 26)  18:40 (152, 66)
P/2005 Y2 (McNaught)        10 58 +23.9  21.5  20:50 (109, 14)  18:40 (129, 10)
107P/(4015) Wilson-Harring. 13 22 -10.8  21.8  20:50 ( 58, 22)  18:40 (137, 59)
282P/(323137) 2003 BM80     03 49 +23.6  21.9   3:22 (262, 32)   5:33 (213, 23)
(343158) 2009 HC82          12 57 +19.6  22.0  20:50 ( 90, 36)  18:40 (151, 30)
263P/Gibbs                  06 44 +20.7  22.0   3:22 (242, -3)   5:33 (246, -2)
246P/NEAT                   06 07 +25.2  22.1   3:22 (243,  6)   5:33 (237,  2)
P/2010 H2 (Vales)           11 37 +14.0  22.1  20:50 ( 96, 17)  18:40 (129, 24)
147P/Kushida-Muramatsu      11 22 +06.3  22.2  20:50 ( 91,  9)  18:40 (120, 27)
P/2001 T3 (NEAT)            23 50 -27.9  22.4   3:22 (354, 27)   3:47 (180, 83)
D/1952 B1 (Harrington-Wil.) 12 22 +11.4  22.8  20:50 ( 87, 24)  18:40 (137, 33)
182P/LONEOS                 12 24 +06.9  22.8  20:50 ( 82, 22)  18:40 (135, 37)
P/2010 TO20 (LINEAR-Grauer) 11 00 +08.3  23.0  20:50 ( 96,  6)  18:40 (118, 22)
185P/Petriew                17 18 -04.2  24.4  21:13 (  0, 51)  21:13 (180, 59)
255P/Levy                   10 01 -00.5  25.3  20:50 ( 97,-11)  18:40 (101, 16)
D/1978 R1 (Haneda-Campos)   08 37 +21.9  27.2  20:50 (128,-12)  18:40 (107,-14)

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