Comets Waiting for First Observation

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Updated on December 5, 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).
  • 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).
  • 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).
  • 54P/de Vico-Swift-NEAT was fainter than 21.0 mag on 2017 Aug. 28 (Hidetaka Sato), fainter than 18.5 mag on 2017 Nov. 11 (Toshihiko Ikemura).
  • 82P/Gehrels 3 was fainter than 20 mag on 2017 Nov. 22 (Jean-Francois Soulier).
  • P/2001 T3 ( NEAT ) was fainter than 21.0 mag on 2017 Nov. 22 (Erwin Schwab).

2017 December 18 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)
37P/Forbes                  15 10 -24.5  17.5   5:31 (309,  9)   2:54 (294,  8)
P/1999 XN120 (Catalina)     08 60 +15.3  18.2   3:14 (  0, 70)   2:54 (186, 40)
P/2002 EJ57 (LINEAR)        06 02 +29.9  18.8   0:17 (  0, 85)   0:17 (180, 25)
P/2008 O2 (McNaught)        20 20 -21.7  18.9  18:21 ( 53, 12)  20:58 ( 69,  7)
P/1998 VS24 (LINEAR)        01 36 +04.4  19.0  19:48 (  0, 60)  20:58 (154, 47)
P/2006 F1 (Kowalski)        19 42 -19.9  19.3  18:21 ( 60,  6)  20:58 ( 65, -1)
P/2001 T3 (NEAT)            23 22 -20.8  19.6  18:21 ( 13, 33)  20:58 ( 94, 43)
197P/LINEAR                 15 49 -10.9  19.7   5:31 (292, 11)   2:54 (289, -7)
253P/PanSTARRS              20 44 -18.0  19.7  18:21 ( 51, 18)  20:58 ( 75, 10)
82P/Gehrels 3               04 54 +22.1  20.0  23:05 (  0, 77)  23:05 (180, 33)
P/2004 FY140 (LINEAR)       20 16 -20.4  20.2  18:21 ( 55, 12)  20:58 ( 69,  6)
P/2013 J4 (PanSTARRS)       16 19 -19.8  20.2   5:31 (295,  0)   2:54 (300, -7)
P/2005 JN (Spacewatch)      12 20 +07.9  20.3   5:31 (329, 59)   2:54 (242, 23)
263P/Gibbs                  15 02 -08.5  20.3   5:31 (298, 22)   2:54 (280,  1)
107P/(4015) Wilson-Harring. 16 56 -23.2  20.4   5:31 (292, -9)   2:54 (309,-11)
P/2008 CL94 (Lemmon)        00 15 -01.8  20.5  18:27 (  0, 53)  20:58 (125, 42)
66P/du Toit                 14 01 -08.9  20.5   5:31 (311, 31)   2:54 (272, 13)
P/2003 L1 (Scotti)          09 51 +02.6  20.5   4:05 (  0, 57)   2:54 (208, 49)
P/2011 CR42 (Catalina)      13 31 -02.6  20.5   5:31 (313, 41)   2:54 (262, 16)
245P/WISE                   17 08 -36.0  20.7   5:31 (302,-18)   2:54 (320, -3)
105P/Singer Brewster        12 03 -05.7  20.7   5:31 (343, 48)   2:54 (250, 35)
21P/Giacobini-Zinner        16 18 -04.0  20.7   5:31 (282, 10)   2:54 (288,-17)
64P/Swift-Gehrels           18 30 -25.7  20.8  18:21 ( 66,-10)  20:58 ( 49, -9)
P/2009 SK280 (Spacew.-Hill) 19 03 -35.9  20.8  18:21 ( 53,-10)  20:58 ( 47,  3)
P/2013 CU129 (PanSTARRS)    10 41 +25.3  20.9   4:55 (  0, 80)   2:54 (210, 23)
99P/Kowal 1                 04 53 +26.4  21.0  23:04 (  0, 81)  23:04 (180, 29)
223P/Skiff                  19 26 -40.0  21.0  18:21 ( 47, -9)  20:58 ( 47,  9)
243P/NEAT                   19 51 -24.6  21.0  18:21 ( 55,  5)  20:58 ( 62,  4)
282P/(323137) 2003 BM80     03 29 +24.7  21.0  21:40 (  0, 80)  21:40 (180, 30)
P/2013 R3 (Catalina-PanST.) 17 08 -23.6  21.0   5:31 (291,-11)   2:54 (311,-13)
P/2005 Y2 (McNaught)        12 26 +17.5  21.1   5:31 (315, 67)   2:54 (236, 15)
54P/de Vico-Swift-NEAT      04 28 +30.8  21.1  22:39 (  0, 86)  22:39 (180, 24)
26P/Grigg-Skjellerup        05 18 -02.3  21.1  23:28 (  0, 53)  23:28 (180, 57)
246P/NEAT                   06 41 +29.3  21.1   0:56 (  0, 84)   0:56 (180, 26)
P/2005 GF8 (LONEOS)         09 45 +13.6  21.2   3:59 (  0, 69)   2:54 (201, 39)
231P/LINEAR-NEAT            05 20 +10.1  21.3  23:31 (  0, 65)  23:31 (180, 45)
P/2010 A1 (Hill)            21 14 -25.0  21.4  18:21 ( 41, 17)  20:58 ( 73, 19)
P/2002 T5 (LINEAR)          21 23 -25.4  21.4  18:21 ( 39, 18)  20:58 ( 73, 21)
P/2011 R3 (Novichonok-Ger.) 16 24 -07.9  22.0   5:31 (284,  6)   2:54 (292,-16)
P/2011 U2 (Bressi)          15 34 -23.9  22.0   5:31 (304,  5)   2:54 (297,  3)
P/2010 H2 (Vales)           14 58 -10.4  22.1   5:31 (300, 21)   2:54 (281,  2)
147P/Kushida-Muramatsu      13 57 -09.8  22.5   5:31 (312, 31)   2:54 (272, 14)
P/2010 TO20 (LINEAR-Grauer) 12 34 -01.8  22.7   5:31 (330, 49)   2:54 (252, 27)
(343158) 2009 HC82          14 09 +11.3  22.8   5:31 (291, 44)   2:54 (257,  0)
2005 HC4                    13 48 -03.9  24.6   5:31 (310, 37)   2:54 (266, 13)
255P/Levy                   15 22 -30.5  36.9   5:31 (311,  3)   2:54 (301,  9)

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