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.

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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)

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