Comets Waiting for First Observation

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Updated on February 19, 2018

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.

  • 21P/Giacobini-Zinner was observed on 2018 Feb. 12 at 19.5 mag by Toshihiko Ikemura and Hirohisa Sato, but not officially announced yet.

  • 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).
  • P/2001 T3 ( NEAT ) was fainter than 21.0 mag on 2017 Nov. 22 (Erwin Schwab).
  • 82P/Gehrels 3 was fainter than 20 mag on 2017 Dec. 23 (Jean-Francois Soulier).
  • P/2005 Y2 ( McNaught ) was fainter than 21.5 mag on 2018 Feb. 17 (Erwin Schwab).
  • P/2002 EJ57 ( LINEAR ) was fainter than 20.0 mag on 2018 Jan. 12 (Toshihiko Ikemura, Hirohisa Sato), fainter than 19.5 mag on 2018 Feb. 18 (Toshihiko Ikemura, Hirohisa Sato),

2018 February 15 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)
P/1999 XN120 (Catalina)     08 25 +16.2  18.3  22:43 (  0, 71)  22:43 (180, 39)
P/2002 EJ57 (LINEAR)        05 38 +28.0  18.7  19:57 (  0, 83)  20:25 (173, 27)
21P/Giacobini-Zinner        17 46 -00.7  18.8   5:21 (304, 37)   4:02 (253, 23)
P/2008 O2 (McNaught)        21 31 -15.8  18.9   5:21 (279,-15)   4:02 (299,-12)
P/2001 T3 (NEAT)            00 32 -06.9  18.9  19:06 ( 69, 17)  20:25 ( 88,  9)
P/2005 JN (Spacewatch)      13 02 +06.9  19.2   3:24 (  0, 62)   3:24 (180, 48)
197P/LINEAR                 20 07 -27.3  19.2   5:21 (300, -5)   4:02 (296, 10)
253P/PanSTARRS              22 46 -09.1  19.4  19:06 ( 83, -5)  20:25 ( 71,-11)
P/1998 VS24 (LINEAR)        02 10 +08.5  19.5  19:06 ( 63, 46)  20:25 (116, 19)
P/2006 F1 (Kowalski)        20 54 -18.3  19.6   5:21 (286, -9)   4:02 (295, -4)
64P/Swift-Gehrels           19 58 -22.1  19.7   5:21 (297, -1)   4:02 (291,  9)
107P/(4015) Wilson-Harring. 19 39 -21.3  19.8   5:21 (299,  3)   4:02 (287, 12)
P/2011 CR42 (Catalina)      14 34 -07.9  19.8   4:55 (  0, 47)   4:02 (208, 60)
243P/NEAT                   21 35 -18.9  20.2   5:21 (281,-18)   4:02 (302,-11)
P/2003 L1 (Scotti)          09 33 +03.3  20.2  23:51 (  0, 58)  23:51 (180, 52)
P/2013 J4 (PanSTARRS)       18 38 -22.8  20.2   5:21 (310, 12)   4:02 (281, 25)
P/2004 FY140 (LINEAR)       21 13 -16.6  20.3   5:21 (282,-12)   4:02 (297, -8)
82P/Gehrels 3               04 40 +21.6  20.3  19:06 (  8, 77)  20:25 (157, 30)
245P/WISE                   19 45 -31.6  20.4   5:21 (306, -4)   4:02 (297, 17)
P/2008 CL94 (Lemmon)        00 38 +01.5  20.6  19:06 ( 75, 23)  20:25 ( 96,  6)
P/2005 Y2 (McNaught)        12 28 +20.6  20.7   2:50 (  0, 76)   2:50 (180, 34)
P/2005 GF8 (LONEOS)         09 20 +15.5  20.7  23:38 (  0, 70)  23:38 (180, 40)
P/2009 SK280 (Spacew.-Hill) 20 19 -33.8  20.7   5:21 (303,-11)   4:02 (303, 12)
223P/Skiff                  21 02 -32.9  20.8   5:21 (298,-18)   4:02 (308,  4)
P/2005 R1 (NEAT)            20 40 -09.6  20.8   5:21 (281, -1)   4:02 (286, -6)
79P/du Toit-Hartley         04 05 +21.7  20.9  19:06 ( 38, 74)  20:25 (148, 26)
P/2010 A1 (Hill)            22 39 -16.3  20.9  19:06 ( 78,-11)  20:25 ( 64, -8)
99P/Kowal 1                 04 38 +25.7  21.1  19:06 ( 13, 81)  20:25 (158, 26)
263P/Gibbs                  17 07 -13.6  21.1   5:21 (323, 33)   4:02 (259, 39)
P/2013 R3 (Catalina-PanST.) 18 53 -23.6  21.1   5:21 (308, 10)   4:02 (284, 22)
231P/LINEAR-NEAT            04 58 +12.9  21.2  19:17 (  0, 68)  20:25 (158, 39)
246P/NEAT                   06 07 +30.5  21.2  20:26 (  0, 85)  20:26 (180, 25)
215P/NEAT                   16 05 -19.5  21.3   5:21 (341, 33)   4:02 (254, 54)
17P/Holmes                  12 08 -14.7  21.4   2:30 (  0, 40)   2:30 (180, 70)
P/2002 T5 (LINEAR)          21 57 -23.3  21.4  19:06 ( 77,-23)  20:25 ( 52,-10)
232P/Hill                   01 21 +02.8  21.4  19:06 ( 68, 33)  20:25 (103, 14)
254P/McNaught               15 57 +13.8  21.5   5:21 (325, 65)   4:02 (220, 31)
282P/(323137) 2003 BM80     03 25 +23.8  21.6  19:06 ( 63, 69)  20:25 (141, 20)
P/2011 U2 (Bressi)          16 14 -25.9  21.8   5:21 (341, 27)   4:02 (265, 56)
P/2011 R3 (Novichonok-Ger.) 17 02 -07.3  21.8   5:21 (320, 39)   4:02 (251, 36)
P/2010 H2 (Vales)           16 05 -15.6  21.9   5:21 (340, 37)   4:02 (248, 52)
331P/Gibbs                  15 42 -19.2  22.3   5:21 (348, 35)   4:02 (248, 59)
P/2010 TO20 (LINEAR-Grauer) 12 38 -02.2  22.4   3:00 (  0, 53)   3:00 (180, 57)
54P/de Vico-Swift-NEAT      04 25 +28.7  22.4  19:06 ( 38, 82)  20:25 (156, 22)
2005 HC4                    13 37 +01.4  24.6   3:59 (  0, 56)   3:59 (180, 54)
2011 KE                     22 08 -13.4  29.2  19:06 ( 84,-16)  20:25 ( 61,-15)

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.