Comets Waiting for First Observation

Japanese version
Home page
Updated on February 21, 2021

Please see also the Weekly Information about Bright Comets and Comet Catalog.

---------------------------------------------------------------------

Bright periodic comets not yet observed in this return.

  • 102P/Shoemaker 1 was observed on 2020 July 18 at 16.9 mag at Blue Mountains Observatory, Leura, but not officially confirmed yet.
  • 142P/Ge-Wang was observed on 2020 July 18 at 18.7 mag at Blue Mountains Observatory, Leura, but not officially confirmed yet.
  • 252P/LINEAR was observed on 2021 Jan. 13 at 23.1 mag at Lowell Discovery Telescope, but not officially confirmed yet.
  • 283P/Spacewatch was observed on 2020 Dec. 6 at 23.1 mag by H. Nohara, but not officially confirmed yet.

  • 142P/Ge-Wang was fainter than 19 mag on 2020 May 24 (Jean-Francois Soulier).
  • P/2005 L1 ( McNaught ) was fainter than 21.5 mag on 2020 Mar. 5 (Erwin Schwab).
  • P/2008 CL94 ( Lemmon ) was fainter than 21.0 mag on 2017 Nov. 8 (Erwin Schwab).
  • P/2010 TO20 ( LINEAR-Grauer ) was fainter than 22.0 mag on 2017 Jan. 27 (Erwin Schwab).
  • P/2012 TK8 ( Tenagra ) was fainter than 21.5 mag on 2020 Aug. 17 (Erwin Schwab).
  • P/2013 YG46 ( Spacewatch ) was fainter than 21.5 mag on 2020 Oct. 28 (Erwin Schwab).
  • P/2015 X6 ( PanSTARRS ) was fainter than 21.5 mag on 2021 Jan. 15 (Erwin Schwab).
  • P/2016 G1 ( PanSTARRS ) was fainter than 22 mag on 2020 Feb. 27 (Erwin Schwab).

2021 February 11 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)
4P/Faye                             20 58 -11.8  16.8   5:24 (278, -9)   3:57 (294,-12)
98P/Takamizawa                      20 25 -19.1  17.1   5:24 (289, -6)   3:57 (295, -2)
323P/SOHO                           01 11 +11.9  17.6  19:03 ( 75, 41)  20:30 (112,  9)
201P/LONEOS                         22 38 -10.9  18.2  19:03 ( 80, -4)  20:30 ( 70, -9)
P/2009 U4 (McNaught)                21 44 -20.3  18.3  19:03 ( 79,-20)  20:30 ( 54,-13)
265P/LINEAR                         23 35 +03.2  19.4  19:03 ( 83, 16)  20:30 ( 90, -6)
P/2014 W12 (Gibbs)                  19 25 -24.7  19.4   5:24 (302,  2)   3:57 (291, 13)
67P/Churyumov-Gerasimenko           20 31 -21.9  19.5   5:24 (290, -9)   3:57 (298, -1)
P/2006 S4 (Christensen)             19 07 -51.6  19.6   5:24 (325,-13)   3:57 (315, 29)
P/2008 CL94 (Lemmon)                05 44 +31.7  19.7  20:18 (  0, 87)  20:30 (177, 23)
(465402) 2008 HW1                   13 57 +01.8  19.8   4:34 (  0, 57)   3:57 (195, 52)
119P/Parker-Hartley                 21 00 -19.6  19.9   5:24 (285,-13)   3:57 (300, -8)
102P/Shoemaker 1                    23 15 +04.6  20.0  19:03 ( 87, 12)  20:30 ( 88,-11)
6P/d'Arrest                         15 51 +00.2  20.0   5:24 (334, 52)   3:57 (233, 40)
179P/Jedicke                        23 34 -18.2  20.0  19:03 ( 66,  2)  20:30 ( 72,  6)
233P/La Sagra                       12 19 +19.3  20.1   2:55 (  0, 74)   2:55 (180, 36)
297P/Beshore                        17 14 -16.9  20.1   5:24 (320, 28)   3:57 (266, 35)
P/2016 P1 (PanSTARRS)               13 27 -35.3  20.2   4:04 (  0, 20)   3:57 (286, 89)
P/2005 W3 (Kowalski)                23 23 +03.0  20.3  19:03 ( 85, 13)  20:30 ( 88, -9)
193P/LINEAR-NEAT                    19 39 -28.2  20.3   5:24 (303, -3)   3:57 (296, 12)
75D/Kohoutek                        02 29 +16.6  20.4  19:03 ( 63, 58)  20:30 (128, 19)
P/2015 X6 (PanSTARRS)               06 18 +24.0  20.7  20:52 (  0, 79)  20:52 (180, 31)
P/2012 TK8 (Tenagra)                23 35 +02.7  20.7  19:03 ( 83, 15)  20:30 ( 89, -6)
P/2011 W1 (PanSTARRS)               00 46 +02.6  20.7  19:03 ( 71, 29)  20:30 (100,  9)
274P/Tombaugh-Tenagra               01 06 -05.4  20.8  19:03 ( 60, 28)  20:30 ( 96, 17)
298P/Christensen                    15 11 -13.6  20.8   5:24 (353, 41)   3:57 (236, 57)
61P/Shajn-Schaldach                 17 38 -17.9  20.8   5:24 (316, 23)   3:57 (271, 31)
302P/Lemmon-PanSTARRS               11 04 +10.8  21.0   1:41 (  0, 66)   1:41 (180, 44)
77P/Longmore                        02 56 +37.9  21.1  19:03 (106, 71)  20:30 (146,  6)
111P/Helin-Roman-Crockett           03 42 +18.3  21.1  19:03 ( 35, 70)  20:30 (144, 28)
106P/Schuster                       21 34 -29.1  21.2   5:24 (289,-25)   3:57 (313, -7)
281P/MOSS                           01 13 +03.8  21.2  19:03 ( 67, 35)  20:30 (105, 13)
D/1977 C1 (Skiff-Kosai)             03 02 +16.4  21.3  19:03 ( 52, 63)  20:30 (134, 24)
195P/Hill                           23 23 +26.9  21.3  19:03 (106, 25)  20:30 (109,-21)
P/2012 G1 (PanSTARRS)               16 20 -30.9  21.3   5:24 (339, 21)   3:57 (277, 52)
135P/Shoemaker-Levy 8               09 50 +04.8  21.4   0:27 (  0, 60)   0:27 (180, 50)
19P/Borrelly                        20 28 -35.5  21.5   5:24 (302,-16)   3:57 (308,  8)
118P/Shoemaker-Levy 4               21 03 -15.3  21.5   5:24 (281,-12)   3:57 (298,-11)
142P/Ge-Wang                        21 36 -09.2  21.5   5:24 (271,-15)   3:57 (299,-21)
57P/du Toit-Neujmin-Delporte        15 15 -16.9  21.6   5:24 (352, 38)   3:57 (242, 59)
P/1997 B1 (Kobayashi)               02 01 +24.9  21.7  19:03 ( 83, 57)  20:30 (129,  8)
P/2004 V3 (Siding Spring)           13 06 -39.8  21.7   3:43 (  0, 15)   3:43 (  0, 85)
(52872) Okyrhoe                     22 34 -05.3  21.7  19:03 ( 85, -2)  20:30 ( 74,-14)
P/2012 T2 (PanSTARRS)               15 24 -11.8  21.8   5:24 (348, 42)   3:57 (238, 54)
P/2007 Q2 (Gilmore)                 23 46 -04.1  21.8  19:03 ( 75, 13)  20:30 ( 86,  0)
108P/Ciffreo                        21 33 -23.3  21.9   5:24 (284,-22)   3:57 (308,-11)
286P/Christensen                    14 10 -32.5  21.9   4:46 (  0, 22)   3:57 (260, 79)
P/2009 Q1 (Hill)                    16 56 -10.0  21.9   5:24 (320, 36)   3:57 (257, 35)
P/2014 U4 (PanSTARRS)               23 11 -06.4  21.9  19:03 ( 79,  5)  20:30 ( 79, -6)
83D/Russell 1                       11 25 -23.3  22.0   2:02 (  0, 32)   2:02 (180, 78)
P/2005 L1 (McNaught)                16 57 -15.5  22.0   5:24 (323, 31)   3:57 (262, 38)
P/2013 W1 (PanSTARRS)               15 19 -12.7  22.1   5:24 (350, 42)   3:57 (238, 55)
2017 MB1                            19 53 -18.4  22.3   5:24 (293,  0)   3:57 (290,  4)
283P/Spacewatch                     06 47 +08.0  22.3  21:20 (  0, 63)  21:20 (180, 47)
169P/NEAT                           15 58 -11.6  22.4   5:24 (337, 40)   3:57 (247, 47)
P/2019 A4 (PanSTARRS)               19 49 -18.8  22.4   5:24 (294,  1)   3:57 (289,  5)
P/2007 S1 (Zhao)                    18 37 -19.1  22.4   5:24 (305, 13)   3:57 (280, 20)
P/2010 TO20 (LINEAR-Grauer)         17 52 -24.8  22.4   5:24 (317, 16)   3:57 (280, 31)
P/2016 G1 (PanSTARRS)               20 33 -11.1  22.5   5:24 (281, -3)   3:57 (290, -8)
P/1999 J6=P/2004 V9=P/2010 H3 (SOHO)21 28 -22.9  22.5   5:24 (284,-20)   3:57 (307,-10)
107P/(4015) Wilson-Harrington       13 50 -14.5  22.6   4:26 (  0, 40)   3:57 (200, 69)
P/2009 WX51 (Catalina)              18 20 -27.5  22.7   5:24 (314, 10)   3:57 (286, 27)
320P/McNaught                       21 49 -11.8  22.7  19:03 ( 86,-15)  20:30 ( 61,-18)
113P/Spitaler                       20 51 -17.6  22.7   5:24 (284,-10)   3:57 (297, -7)
15P/Finlay                          18 19 -28.1  22.7   5:24 (315, 10)   3:57 (286, 28)
252P/LINEAR                         02 38 +06.2  22.7  19:03 ( 48, 52)  20:30 (121, 28)
324P/La Sagra                       20 40 -08.8  22.8   5:24 (278, -3)   3:57 (289,-11)
P/2016 BA14 (PanSTARRS)             02 55 -03.1  23.0  19:03 ( 35, 46)  20:30 (117, 37)
206P/Barnard-Boattini               23 49 +00.5  23.0  19:03 ( 79, 17)  20:30 ( 90, -2)
97P/Metcalf-Brewington              21 56 -04.4  23.1  19:03 ( 91, -9)  20:30 ( 68,-22)
P/2013 YG46 (Spacewatch)            09 43 +24.5  23.1   0:21 (  0, 79)   0:21 (180, 31)
P/2007 R4 (Garradd)                 19 13 -25.2  23.4   5:24 (304,  3)   3:57 (290, 16)
P/2014 MG4 (Spacewatch-PanSTARRS)   07 19 +25.7  23.4  21:52 (  0, 81)  21:52 (180, 29)
132P/Helin-Roman-Alu 2              19 57 -16.9  23.8   5:24 (291,  0)   3:57 (289,  2)
104P/Kowal 2                        20 21 -14.8  24.6   5:24 (286, -3)   3:57 (291, -4)
354P/LINEAR                         14 00 -17.7  25.5   4:36 (  0, 37)   3:57 (210, 71)

---------------------------------------------------------------------

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