Comets Waiting for First Observation

Japanese version
Home page
Updated on July 30, 2021

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

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

Bright periodic comets not yet observed in this return.

  • 73P/Schwassmann-Wachmann 3 was observed on 2021 Jan. 13 at 23.7 mag at Lowell Discovery Telescope, but not officially confirmed yet.
  • 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.
  • 332P/Ikeya-Murakami was observed on 2020 Oct. 12 at 24.5 mag at Lowell Discovery Telescope, but not officially confirmed yet.

  • 135P/Shoemaker-Levy 8 was fainter than 20.5 mag on 2020 Feb. 14 (Hidetaka Sato).
  • 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 2021 Mar. 11 (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 August 8 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/2014 W12 (Gibbs)                  02 12 +24.1  17.0   3:39 (294, 68)   5:06 (180, 31)
201P/LONEOS                         08 40 +21.9  17.1   3:39 (235, -9)   5:21 (253,-15)
104P/Kowal 2                        22 47 +01.5  17.7   1:42 (  0, 57)   1:42 (180, 53)
95P/(2060) Chiron                   00 40 +07.0  18.4   3:35 (  0, 62)   3:35 (180, 48)
179P/Jedicke                        02 11 -09.8  18.7   3:39 (331, 41)   5:05 (180, 65)
61P/Shajn-Schaldach                 17 19 -16.2  19.0  20:30 (  6, 39)  20:11 (180, 71)
P/2007 R4 (Garradd)                 22 06 -41.1  19.3   1:02 (  0, 14)   1:02 (  0, 84)
274P/Tombaugh-Tenagra               04 50 +16.1  19.3   3:39 (273, 32)   5:21 (220, 29)
252P/LINEAR                         11 37 +04.6  19.4  20:30 ( 93,  3)  18:49 (109, 18)
P/2011 W1 (PanSTARRS)               04 24 +18.3  19.6   3:39 (274, 39)   5:21 (212, 30)
P/2012 TK8 (Tenagra)                03 43 +25.6  19.8   3:39 (271, 51)   5:21 (199, 27)
97P/Metcalf-Brewington              01 20 +08.8  19.8   3:39 (340, 63)   4:15 (180, 46)
297P/Beshore                        18 09 -26.0  20.1  21:01 (  0, 29)  21:01 (180, 81)
332P/Ikeya-Murakami                 09 51 +16.4  20.2  20:30 (119,-11)  18:49 (103,-10)
P/2016 P1 (PanSTARRS)               13 59 -39.0  20.2  20:30 ( 39,  0)  18:49 ( 71, 66)
P/2007 S1 (Zhao)                    18 54 -18.9  20.5  21:46 (  0, 36)  21:46 (180, 74)
142P/Ge-Wang                        02 29 +09.8  20.5   3:39 (310, 55)   5:21 (181, 45)
P/1997 B1 (Kobayashi)               05 59 +33.3  20.6   3:39 (247, 27)   5:21 (222,  6)
P/2019 A4 (PanSTARRS)               22 00 -20.7  20.7   0:56 (  0, 34)   0:56 (180, 76)
2010 RH69                           01 01 +08.3  20.7   3:39 (351, 63)   3:56 (180, 47)
281P/MOSS                           03 53 +17.2  20.8   3:39 (280, 45)   5:21 (205, 34)
195P/Hill                           00 48 +37.1  20.8   3:39 (198, 88)   3:43 (180, 18)
283P/Spacewatch                     10 48 +09.6  20.9  20:30 (105, -4)  18:49 (105,  5)
77P/Longmore                        06 29 +42.9  21.0   3:39 (234, 26)   5:21 (220, -5)
P/2005 L1 (McNaught)                16 59 -15.6  21.0  20:30 ( 12, 38)  19:51 (180, 71)
102P/Shoemaker 1                    05 42 +44.9  21.0   3:39 (236, 34)   5:21 (212, -1)
P/2014 A3 (PanSTARRS)               23 58 +14.6  21.2   2:53 (  0, 70)   2:53 (180, 40)
P/2008 QP20 (LINEAR-Hill)           23 15 -01.9  21.2   2:10 (  0, 53)   2:10 (180, 57)
135P/Shoemaker-Levy 8               11 10 +02.3  21.2  20:30 ( 96, -4)  18:49 (103, 14)
(431760) 2008 HE                    13 48 -05.7  21.3  20:30 ( 65, 22)  18:49 (127, 48)
P/2004 V3 (Siding Spring)           12 16 -38.9  21.3  20:30 ( 52,-15)  18:49 ( 68, 46)
147P/Kushida-Muramatsu              21 08 -18.6  21.5   0:03 (  0, 36)   0:03 (180, 74)
P/2008 WZ96 (LINEAR)                03 60 +17.3  21.5   3:39 (279, 43)   5:21 (207, 33)
D/1977 C1 (Skiff-Kosai)             07 50 +22.2  21.6   3:39 (243,  0)   5:21 (247, -5)
P/2004 R3 (LINEAR-NEAT)             22 43 +01.3  21.6   1:38 (  0, 56)   1:38 (180, 54)
P/2012 G1 (PanSTARRS)               16 41 -25.5  21.7  20:30 ( 15, 28)  19:33 (180, 80)
111P/Helin-Roman-Crockett           07 10 +23.0  21.7   3:39 (248,  8)   5:21 (240,  1)
86P/Wild 3                          12 15 +09.8  21.7  20:30 ( 93, 13)  18:49 (119, 21)
P/2012 T2 (PanSTARRS)               14 50 -11.5  21.7  20:30 ( 49, 29)  18:49 (143, 62)
148P/Anderson-LINEAR                00 12 -03.9  21.7   3:07 (  0, 51)   3:07 (180, 59)
302P/Lemmon-PanSTARRS               11 16 +09.1  21.8  20:30 (100,  1)  18:49 (109, 11)
211P/Hill                           02 45 -05.6  21.8   3:39 (319, 41)   5:21 (189, 60)
299P/Catalina-PanSTARRS             07 12 +20.9  21.9   3:39 (249,  6)   5:21 (242,  2)
172P/Yeung                          04 41 +27.7  21.9   3:39 (261, 40)   5:21 (211, 20)
P/2010 TO20 (LINEAR-Grauer)         17 41 -25.6  21.9  20:33 (  0, 29)  20:33 (180, 81)
P/2015 Q1 (Scotti)                  21 57 +19.7  21.9   0:52 (  0, 75)   0:52 (180, 35)
P/2016 BA14 (PanSTARRS)             12 40 +07.6  22.0  20:30 ( 87, 17)  18:49 (123, 27)
133P/(7968) Elst-Pizarro            08 05 +19.5  22.0   3:39 (243, -4)   5:21 (251, -7)
P/2016 G1 (PanSTARRS)               01 54 +16.6  22.1   3:39 (316, 66)   4:48 (180, 38)
324P/La Sagra                       23 49 +30.3  22.1   2:44 (  0, 85)   2:44 (180, 25)
205P/Giacobini                      15 08 -00.4  22.1  20:30 ( 53, 40)  18:49 (159, 54)
272P/NEAT                           04 44 +08.4  22.1   3:39 (281, 29)   5:21 (223, 36)
75D/Kohoutek                        09 51 +09.2  22.3  20:30 (113,-16)  18:49 ( 97, -6)
2017 MB1                            09 51 +15.3  22.4  20:30 (118,-12)  18:49 (102,-10)
107P/(4015) Wilson-Harrington       13 03 -08.9  22.4  20:30 ( 70, 12)  18:49 (113, 43)
298P/Christensen                    14 54 -18.6  22.4  20:30 ( 43, 24)  18:49 (136, 69)
73P/Schwassmann-Wachmann 3          08 44 +25.6  22.5   3:39 (232, -7)   5:21 (251,-17)
325P/Yang-Gao                       09 01 +06.1  22.7   3:39 (244,-23)   5:21 (270,-10)
83D/Russell 1                       13 29 -08.5  22.8  20:30 ( 66, 17)  18:49 (119, 47)
P/2015 X6 (PanSTARRS)               10 23 +12.9  22.9  20:30 (111, -7)  18:49 (104, -2)
P/2014 U4 (PanSTARRS)               05 48 +27.8  23.0   3:39 (253, 26)   5:21 (224, 11)
265P/LINEAR                         07 49 +30.1  23.3   3:39 (237,  5)   5:21 (240,-10)
P/2013 YG46 (Spacewatch)            10 29 +15.9  23.7  20:30 (113, -4)  18:49 (108, -3)
P/2014 MG4 (Spacewatch-PanSTARRS)   08 37 +19.5  23.8   3:39 (238,-10)   5:21 (255,-13)
P/2009 WX51 (Catalina)              18 27 -36.1  24.0  21:18 (  0, 19)  21:18 (  0, 89)
206P/Barnard-Boattini               07 43 -02.6  24.9   3:39 (264,-13)   5:21 (266, 11)
354P/LINEAR                         13 53 -17.1  26.4  20:30 ( 55, 15)  18:49 (115, 57)

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

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