Comets Waiting for First Observation

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Updated on October 8, 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/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).
  • 54P/de Vico-Swift-NEAT was fainter than 21.0 mag on 2017 Aug. 28 (Hidetaka Sato).

2017 October 19 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              10 58 -04.0  16.7   4:44 (288, 17)   3:44 (268,  9)
P/2008 O2 (McNaught)        19 23 -25.9  18.6  18:44 ( 18, 27)  19:46 ( 98, 60)
P/1999 XN120 (Catalina)     08 38 +18.0  18.6   4:44 (294, 58)   3:44 (228, 21)
P/1998 VS24 (LINEAR)        01 57 +06.3  18.7   0:08 (  0, 61)   0:08 (180, 49)
P/2006 F1 (Kowalski)        18 42 -18.8  18.9  18:44 ( 31, 30)  19:46 (101, 48)
37P/Forbes                  13 03 -12.9  19.3   4:44 (277,-13)   3:44 (294,-10)
250P/Larson                 07 16 +24.7  19.3   4:44 (316, 76)   3:44 (206, 26)
P/2004 FY140 (LINEAR)       19 31 -22.7  19.7  18:44 ( 17, 30)  19:46 (105, 60)
P/2002 EJ57 (LINEAR)        06 14 +29.1  19.8   4:24 (  0, 84)   3:44 (190, 25)
P/2008 CL94 (Lemmon)        00 25 -01.9  19.9  22:32 (  0, 53)  22:32 (180, 57)
253P/PanSTARRS              19 05 -21.0  20.0  18:44 ( 25, 30)  19:46 (103, 54)
P/2013 J4 (PanSTARRS)       13 55 -09.0  20.1  18:44 ( 88,-13)  19:46 ( 67,-15)
263P/Gibbs                  12 01 +05.9  20.3   4:44 (270, 10)   3:44 (269, -9)
82P/Gehrels 3               05 25 +23.0  20.3   3:36 (  0, 78)   3:36 (180, 32)
P/2001 T3 (NEAT)            23 04 -31.0  20.4  21:12 (  0, 24)  21:12 (180, 86)
54P/de Vico-Swift-NEAT      05 11 +30.4  20.5   3:22 (  0, 85)   3:22 (180, 25)
228P/LINEAR                 01 41 +09.7  20.7  23:48 (  0, 65)  23:48 (180, 45)
P/2009 SK280 (Spacew.-Hill) 17 56 -37.6  20.7  18:44 ( 31,  9)  19:46 ( 70, 46)
P/2011 CR42 (Catalina)      12 04 +06.2  20.7   4:44 (269, 10)   3:44 (269,-10)
P/2011 VJ5 (Lemmon)         04 03 +15.0  20.8   2:14 (  0, 70)   2:14 (180, 40)
P/2003 L1 (Scotti)          09 37 +05.3  21.0   4:44 (294, 38)   3:44 (248, 20)
245P/WISE                   14 32 -31.0  21.0  18:44 ( 64,-18)  19:46 ( 56,  6)
223P/Skiff                  17 59 -45.8  21.0  18:44 ( 26,  2)  19:46 ( 58, 48)
282P/(323137) 2003 BM80     04 04 +26.0  21.2   2:15 (  0, 81)   2:15 (180, 29)
107P/(4015) Wilson-Harring. 14 59 -18.1  21.3  18:44 ( 72, -6)  19:46 ( 70,  3)
99P/Kowal 1                 05 17 +26.5  21.3   3:28 (  0, 81)   3:28 (180, 29)
P/2005 JN (Spacewatch)      10 58 +14.2  21.3   4:44 (272, 28)   3:44 (253, -1)
P/2002 T5 (LINEAR)          21 08 -26.5  21.3  19:16 (  0, 29)  19:46 (141, 79)
P/2005 Y2 (McNaught)        11 54 +18.4  21.4   4:44 (260, 18)   3:44 (258,-15)
64P/Swift-Gehrels           17 18 -26.7  21.5  18:44 ( 44, 13)  19:46 ( 79, 35)
P/2010 A1 (Hill)            20 22 -30.8  21.5  18:44 (  3, 24)  19:46 (100, 74)
P/2013 R3 (Catalina-PanST.) 15 31 -19.7  21.5  18:44 ( 66, -1)  19:46 ( 73, 10)
246P/NEAT                   06 60 +26.8  21.6   4:44 (324, 80)   3:44 (201, 25)
105P/Singer Brewster        10 46 +02.2  21.6   4:44 (285, 23)   3:44 (261,  8)
243P/NEAT                   18 23 -26.4  21.6  18:44 ( 32, 21)  19:46 ( 88, 48)
197P/LINEAR                 12 44 +12.8  21.6   4:44 (258,  5)   3:44 (269,-22)
P/2010 H2 (Vales)           13 34 -01.8  21.8   4:44 (263,-13)   3:44 (290,-23)
2005 HC4                    12 33 +00.3  21.8   4:44 (270,  0)   3:44 (278,-12)
P/2005 GF8 (LONEOS)         09 28 +15.0  21.9   4:44 (286, 46)   3:44 (239, 15)
21P/Giacobini-Zinner        15 01 -01.6  22.0  18:44 ( 85,  4)  19:46 ( 83, -7)
P/2011 R3 (Novichonok-Ger.) 15 39 -06.1  22.0  18:44 ( 76,  9)  19:46 ( 85,  4)
231P/LINEAR-NEAT            05 47 +11.0  22.0   3:58 (  0, 66)   3:44 (185, 44)
147P/Kushida-Muramatsu      12 58 -04.1  22.2   4:44 (270, -7)   3:44 (286,-15)
26P/Grigg-Skjellerup        05 57 +05.0  22.3   4:07 (  0, 60)   3:44 (189, 50)
P/2013 CU129 (PanSTARRS)    09 41 +25.4  22.3   4:44 (271, 49)   3:44 (233,  6)
(343158) 2009 HC82          13 38 +11.3  22.5  18:44 (107, -5)  19:46 ( 82,-31)
66P/du Toit                 12 26 +03.8  22.6   4:44 (268,  4)   3:44 (275,-13)
P/2010 TO20 (LINEAR-Grauer) 12 01 +01.7  23.0   4:44 (273,  8)   3:44 (273, -7)
255P/Levy                   13 33 -22.4  33.4   4:44 (281,-24)   3:44 (306, -9)

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