Comets Waiting for First Observation

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Updated on September 14, 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.

  • 243P/NEAT was observed on 2018 May 16 at 20.5 mag by Hidetaka Sato, but not officially announced yet.
  • 223P/Skiff was observed on 2018 Aug. 5 at 18.9 mag by Toshihiko Ikemura and Hirohisa Sato, but not officially announced yet.
  • 131P/Mueller 2 was observed on 2018 Aug. 8 at 19.5 mag by Toshihiko Ikemura and Hirohisa Sato, but not officially announced yet.
  • P/2011 W2 ( Rinner ) was observed on 2018 Sept. 8 by Joel Nicolas, 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/2010 H2 ( Vales ) was fainter than 21.5 mag on 2017 Mar. 28 (Erwin Schwab).
  • 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).
  • 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. 23 (Toshihiko Ikemura, Hirohisa Sato).
  • P/2003 L1 ( Scotti ) was fainter than 21.5 mag on 2017 Mar. 24 (Erwin Schwab), fainter than 20.5 mag on 2018 Apr. 9 (Erwin Schwab).
  • P/2011 V1 ( Boattini ) was fainter than 18.5 mag on 2018 May 21 (Toshihiko Ikemura, Hirohisa Sato).
  • P/2013 R3 ( Catalina-PanSTARRS ) was fainter than 22 mag on 2018 Aug. 8 (Erwin Schwab).
  • 198P/ODAS was fainter than 20 mag on 2018 July 24 (Jean-Francois Soulier), fainter than 19 mag on 2018 Sept. 8 (Jean-Francois Soulier).
  • P/2007 V1 ( Larson ) was fainter than 22.0 mag on 2018 Sept. 10 (Erwin Schwab).

2018 September 9 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)
79P/du Toit-Hartley         12 07 -02.7  17.6  19:42 ( 94,-11)  19:10 ( 86, -1)
P/2008 O2 (McNaught)        23 05 -00.9  17.8  23:50 (  0, 54)  23:50 (180, 56)
223P/Skiff                  22 59 -09.2  18.0  23:44 (  0, 46)  23:44 (180, 64)
243P/NEAT                   02 18 +02.4  18.3   3:08 (  0, 58)   3:08 (180, 52)
P/2011 V1 (Boattini)        17 56 -33.8  18.3  19:42 ( 13, 20)  19:10 (101, 84)
60P/Tsuchinshan 2           06 56 +23.6  18.4   4:11 (269, 43)   4:45 (223, 17)
131P/Mueller 2              23 41 +06.5  18.5   0:31 (  0, 62)   0:31 (180, 48)
300P/Catalina               13 54 -09.6  18.6  19:42 ( 73,  6)  19:10 ( 95, 24)
171P/Spahr                  04 22 -05.6  18.6   4:11 (338, 47)   4:45 (193, 60)
P/2007 V1 (Larson)          02 41 +20.4  18.7   3:30 (  0, 75)   3:30 (180, 35)
P/2013 R3 (Catalina-PanST.) 20 40 -18.8  18.9  21:26 (  0, 36)  21:26 (180, 74)
253P/PanSTARRS              06 02 +18.6  19.0   4:11 (284, 51)   4:45 (214, 29)
232P/Hill                   05 31 +25.7  19.2   4:11 (280, 61)   4:45 (204, 25)
P/2006 F1 (Kowalski)        22 15 -24.7  19.2  23:01 (  0, 30)  23:01 (180, 80)
117P/Helin-Roman-Alu 1      08 05 +26.5  19.5   4:11 (257, 30)   4:45 (233,  5)
203P/Korlevic               23 56 +03.4  19.5   0:46 (  0, 59)   0:46 (180, 51)
P/2007 T2 (Kowalski)        08 35 +25.4  19.6   4:11 (255, 23)   4:45 (238,  1)
P/2009 SK280 (Spacew.-Hill) 21 08 -37.9  19.7  21:54 (  0, 17)  21:54 (  0, 87)
P/2002 EJ57 (LINEAR)        10 54 +06.3  19.7   4:11 (251,-15)   4:45 (273,-15)
P/2011 W2 (Rinner)          03 06 +24.0  19.7   3:55 (  0, 79)   3:55 (180, 31)
P/1998 VS24 (LINEAR)        06 35 +18.6  19.8   4:11 (278, 45)   4:45 (222, 24)
P/2004 FY140 (LINEAR)       21 56 -12.4  19.8  22:42 (  0, 43)  22:42 (180, 67)
P/2008 CL94 (Lemmon)        02 17 +12.9  20.1   3:06 (  0, 68)   3:06 (180, 42)
239P/LINEAR                 05 30 +27.7  20.1   4:11 (276, 62)   4:45 (203, 23)
P/2006 D1 (Hill)            06 45 +38.5  20.2   4:11 (250, 50)   4:45 (212,  7)
198P/ODAS                   03 32 +20.0  20.2   4:11 (352, 75)   4:21 (180, 35)
P/2010 U2 (Hill)            20 57 -32.1  20.2  21:43 (  0, 23)  21:43 (180, 87)
P/2002 T5 (LINEAR)          22 33 -29.0  20.3  23:19 (  0, 26)  23:19 (180, 84)
231P/LINEAR-NEAT            08 52 +15.4  20.3   4:11 (261, 15)   4:45 (248,  4)
P/1996 R2 (Lagerkvist)      21 56 -16.5  20.3  22:42 (  0, 39)  22:42 (180, 71)
P/2005 GF8 (LONEOS)         10 56 +06.3  20.3   4:11 (251,-15)   4:45 (274,-16)
69P/Taylor                  03 50 -07.3  20.3   4:11 (350, 47)   4:39 (180, 62)
P/2005 J1 (McNaught)        13 09 -23.5  20.3  19:42 ( 68,-10)  19:10 ( 76, 23)
P/2013 J4 (PanSTARRS)       20 15 -25.8  20.4  21:02 (  0, 29)  21:02 (180, 81)
P/1999 XN120 (Catalina)     10 51 +03.7  20.5   4:11 (254,-16)   4:45 (275,-13)
173P/Mueller 5              01 42 -10.0  20.5   2:32 (  0, 45)   2:32 (180, 65)
P/2014 C1 (TOTAS)           07 45 +19.1  20.5   4:11 (267, 30)   4:45 (235, 13)
267P/LONEOS                 04 36 +26.2  20.5   4:11 (294, 72)   4:45 (190, 28)
P/2003 L1 (Scotti)          10 40 +00.9  20.6   4:11 (258,-15)   4:45 (276,-10)
101P/Chernykh               18 32 -22.6  20.7  19:42 (  6, 32)  19:19 (180, 78)
99P/Kowal 1                 06 44 +26.7  20.8   4:11 (266, 46)   4:45 (219, 16)
246P/NEAT                   08 41 +27.4  20.9   4:11 (252, 23)   4:45 (237, -2)
P/2005 Y2 (McNaught)        12 39 +13.6  20.9  19:42 (103,  5)  19:10 (103, -4)
82P/Gehrels 3               08 38 +17.7  20.9   4:11 (261, 19)   4:45 (245,  5)
10P/Tempel 2                09 40 +17.4  21.1   4:11 (253,  6)   4:45 (253, -7)
254P/McNaught               15 32 +10.4  21.1  19:42 ( 75, 38)  19:10 (130, 29)
247P/LINEAR                 05 35 +22.1  21.3   4:11 (285, 58)   4:45 (206, 28)
P/2013 EW90 (Tenagra)       02 12 -13.1  21.3   3:02 (  0, 42)   3:02 (180, 68)
36P/Whipple                 17 34 -12.7  21.4  19:42 ( 26, 38)  19:10 (150, 65)
P/2007 R1 (Larson)          14 59 -10.0  21.4  19:42 ( 63, 18)  19:10 (105, 37)
P/2015 F1 (PanSTARRS)       04 16 +22.0  21.4   4:11 (314, 72)   4:45 (186, 33)
266P/Christensen            22 35 -11.2  21.5  23:20 (  0, 44)  23:20 (180, 66)
209P/LINEAR                 06 38 +29.4  21.5   4:11 (264, 49)   4:45 (216, 15)
P/2011 R3 (Novichonok-Ger.) 16 36 -04.1  21.6  19:42 ( 47, 39)  19:10 (135, 50)
282P/(323137) 2003 BM80     06 23 +28.7  21.6   4:11 (266, 51)   4:45 (213, 17)
163P/NEAT                   00 29 -16.1  21.7   1:19 (  0, 39)   1:19 (180, 71)
P/2011 U2 (Bressi)          15 52 -22.5  21.7  19:42 ( 44, 18)  19:10 (101, 55)
124P/Mrkos                  02 33 +38.6  21.7   3:23 (180, 86)   3:23 (180, 16)
258P/PanSTARRS              04 50 +15.9  21.9   4:11 (309, 63)   4:45 (196, 37)
P/2007 T4 (Gibbs)           00 04 -28.1  21.9   0:54 (  0, 27)   0:54 (180, 83)
17P/Holmes                  12 14 -14.7  22.0  19:42 ( 83,-17)  19:10 ( 77,  7)
P/2010 H2 (Vales)           15 59 -24.3  22.3  19:42 ( 41, 18)  19:10 ( 99, 57)
121P/Shoemaker-Holt 2       18 35 -28.6  22.3  19:42 (  5, 26)  19:22 (180, 84)
(399457) 2002 PD43          20 47 -08.8  22.5  21:33 (  0, 46)  21:33 (180, 64)
(431760) 2008 HE            12 36 -05.7  22.6  19:42 ( 88, -7)  19:10 ( 87,  6)
P/2010 TO20 (LINEAR-Grauer) 12 48 -04.1  22.9  19:42 ( 88, -4)  19:10 ( 90,  7)
324P/La Sagra               10 01 -03.5  24.0   4:11 (267,-10)   4:45 (274,  1)
354P/LINEAR                 17 08 -26.6  26.3  19:42 ( 26, 23)  19:10 (113, 72)
2008 FF5                    12 26 -02.9  27.4  19:42 ( 91, -8)  19:10 ( 88,  3)

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