Comets Waiting for First Observation

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Updated on April 6, 2026

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/2010 H2 ( Vales ) was fainter than 22 mag on 2025 Jan. 27 (Erwin Schwab).

2026 April 17 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)
141P/Machholz 2                     01 31 +13.6  14.3   3:57 (242,-14)   5:00 (266,-18)
304P/Ory                            02 52 +16.5  16.7  20:03 (111,  0)  18:58 (106, -7)
407P/PanSTARRS-Fuls                 07 41 +25.9  18.1  20:03 ( 79, 62)  18:58 (166, 28)
(399457) 2002 PD43                  02 04 +12.4  18.2  20:03 (115,-13)  18:58 ( 95,-14)
220P/McNaught                       21 54 -08.6  18.7   3:57 (292, 15)   5:00 (251, 38)
P/2012 K3 (Gibbs)                   19 30 -11.6  18.8   3:57 (324, 36)   5:00 (209, 64)
P/2004 V5 (LINEAR-Hill)             04 30 +30.9  19.2  20:03 (111, 26)  18:58 (131,  2)
P/2021 N1 (ZTF)                     17 17 -43.8  19.4   3:39 (  0, 11)   3:39 (  0, 81)
373P/Rinner                         02 40 +16.1  19.6  20:03 (112, -3)  18:58 (104, -9)
P/2011 V1 (Boattini)                22 49 -13.7  19.7   3:57 (288,  1)   5:00 (266, 30)
P/2009 B1 (Boattini)                02 01 +28.9  19.7  20:03 (128, -2)  18:58 (110,-23)
245P/WISE                           20 59 -30.4  19.8   3:57 (317,  9)   5:00 (271, 60)
P/2022 BV9 (Lemmon)                 12 38 -14.3  20.1  22:55 (  0, 41)  22:55 (180, 69)
114P/Wiseman-Skiff                  00 34 +17.3  20.1   3:57 (247, -1)   5:00 (255, -9)
107P/(4015) Wilson-Harrington       16 36 -24.2  20.1   2:57 (  0, 31)   2:57 (180, 79)
139P/Vaisala-Oterma                 23 01 -04.1  20.3   3:57 (278,  5)   5:00 (259, 22)
P/2011 N1 (ASH)                     21 32 -41.0  20.3   3:57 (319, -3)   5:00 (293, 56)
469P/PanSTARRS                      17 46 +00.5  20.3   3:57 (355, 55)   4:07 (180, 55)
P/2005 S2 (Skiff)                   22 25 -09.2  20.4   3:57 (288,  9)   5:00 (257, 33)
412P/WISE                           06 34 +29.8  20.4  20:03 ( 96, 50)  18:58 (152, 19)
186P/Garradd                        06 57 +39.0  20.5  20:03 (109, 57)  18:58 (160, 12)
P/2018 VN2 (Leonard)                22 27 +06.0  20.5   3:57 (275, 18)   5:00 (244, 23)
161P/Hartley-IRAS                   02 19 -34.3  20.5  20:03 ( 70,-35)  18:58 ( 59, 15)
383P/Christensen                    21 32 -03.1  20.5   3:57 (292, 23)   5:00 (241, 39)
2000 XO8                            23 31 -12.8  20.6   3:57 (281, -6)   5:00 (271, 21)
2019 OE31                           13 35 -07.3  20.7  23:53 (  0, 48)  23:53 (180, 62)
P/2023 B3 (PanSTARRS)               16 14 -10.2  20.7   2:36 (  0, 45)   2:36 (180, 65)
P/2010 H4 (Scotti)                  11 58 +02.2  20.7  22:16 (  0, 57)  22:16 (180, 53)
187P/LINEAR                         10 04 +24.1  20.7  20:22 (  0, 79)  20:22 (180, 31)
P/2011 P1 (McNaught)                15 38 -24.4  20.7   2:00 (  0, 30)   2:00 (180, 80)
P/2009 WX51 (Catalina)              05 00 +30.6  20.8  20:03 (107, 32)  18:58 (135,  7)
(944) Hidalgo                       16 57 -61.5  20.9   3:19 (  0, -7)   3:19 (  0, 63)
2010 RH69                           11 23 +00.2  20.9  21:41 (  0, 55)  21:41 (180, 55)
320P/McNaught                       16 55 -35.5  21.0   3:16 (  0, 20)   3:16 (  0, 90)
340P/Boattini                       00 59 +08.0  21.0   3:57 (251,-12)   5:00 (266, -9)
324P/La Sagra                       20 23 -14.2  21.0   3:57 (313, 27)   5:00 (235, 59)
P/2012 O2 (McNaught)                22 44 -12.2  21.0   3:57 (287,  3)   5:00 (263, 30)
82P/Gehrels 3                       04 09 +20.8  21.1  20:03 (104, 17)  18:58 (120,  5)
391P/Kowalski                       15 42 +07.1  21.1   2:04 (  0, 62)   2:04 (180, 48)
P/2010 D2 (WISE)                    23 08 +34.5  21.1   3:57 (243, 24)   5:00 (229, -4)
223P/Skiff                          20 46 -43.5  21.1   3:57 (327,  0)   5:00 (299, 64)
176P/(118401) LINEAR                15 13 -18.2  21.2   1:35 (  0, 37)   1:35 (180, 73)
P/2006 HR30 (Siding Spring)         19 46 -36.9  21.3   3:57 (334, 12)   5:00 (283, 76)
489P/Denning                        12 53 -05.6  21.3  23:10 (  0, 49)  23:10 (180, 61)
P/2007 K2 (Gibbs)                   05 49 +16.6  21.4  20:03 ( 86, 35)  18:58 (135, 25)
257P/Catalina                       12 37 -10.1  21.4  22:55 (  0, 45)  22:55 (180, 65)
231P/LINEAR-NEAT                    05 21 +16.2  21.4  20:03 ( 90, 29)  18:58 (129, 21)
P/2012 T3 (PanSTARRS)               17 04 -13.0  21.4   3:26 (  0, 42)   3:26 (180, 68)
147P/Kushida-Muramatsu              13 46 -08.1  21.5   0:08 (  0, 47)   0:08 (180, 63)
P/2013 T2 (Schwartz)                22 60 -11.7  21.5   3:57 (285,  1)   5:00 (265, 27)
P/1996 R2 (Lagerkvist)              00 22 +01.0  21.5   3:57 (262, -9)   5:00 (267,  3)
P/2017 U3 (PanSTARRS)               22 15 -05.4  21.5   3:57 (286, 13)   5:00 (252, 32)
137P/Shoemaker-Levy 2               15 33 -19.4  21.5   1:55 (  0, 36)   1:55 (180, 74)
246P/NEAT                           06 16 +31.7  21.6  20:03 (101, 47)  18:58 (149, 15)
P/2010 C1 (Scotti)                  04 21 +13.7  21.6  20:03 ( 96, 15)  18:58 (116, 12)
282P/(323137) 2003 BM80             02 51 +19.8  21.7  20:03 (114,  1)  18:58 (108, -9)
P/2009 Y2 (Kowalski)                00 19 +26.0  21.7   3:57 (243,  7)   5:00 (246,-11)
P/2015 X3 (PanSTARRS)               23 58 -21.6  21.8   3:57 (285,-16)   5:00 (283, 20)
P/2005 T3 (Read)                    01 38 +10.0  21.8   3:57 (243,-18)   5:00 (270,-18)
P/2015 X6 (PanSTARRS)               10 26 +15.8  21.8  20:44 (  0, 71)  20:44 (180, 39)
69P/Taylor                          01 59 -04.8  21.8  20:03 (102,-24)  18:58 ( 81, -5)
435P/PanSTARRS                      20 14 -19.3  21.8   3:57 (319, 24)   5:00 (239, 64)
359P/LONEOS                         18 42 -12.9  21.8   3:57 (339, 40)   5:00 (182, 68)
P/2017 D1 (Fuls)                    01 56 -02.6  21.9  20:03 (104,-23)  18:58 ( 82, -7)
230P/LINEAR                         17 57 -15.2  21.9   3:57 (353, 40)   4:18 (180, 70)
357P/Hill                           20 54 -23.5  22.0   3:57 (314, 15)   5:00 (258, 59)
P/2021 A5 (PanSTARRS)               01 49 +24.4  22.0  20:03 (126, -7)  18:58 (104,-23)
259P/Garradd                        19 17 -31.2  22.0   3:57 (337, 20)   5:00 (246, 81)
P/2019 A4 (PanSTARRS)               00 34 -05.5  22.0   3:57 (266,-15)   5:00 (274,  4)
P/2010 H2 (Vales)                   18 52 -28.8  22.0   3:57 (342, 24)   5:00 (205, 83)
163P/NEAT                           01 29 -00.6  22.0   3:57 (253,-23)   5:00 (278,-10)
P/2004 FY140 (LINEAR)               13 19 -10.9  22.1  23:37 (  0, 44)  23:37 (180, 66)
156P/Russell-LINEAR                 18 50 -37.9  22.1   3:57 (345, 15)   5:00 (322, 86)
P/2020 G1 (Pimentel)                20 47 -02.3  22.1   3:57 (299, 32)   5:00 (229, 46)
397P/Lemmon                         17 58 -35.2  22.1   3:57 (355, 20)   4:20 (  0, 90)
178P/Hug-Bell                       20 05 -20.4  22.2   3:57 (321, 24)   5:00 (238, 66)
84P/Giclas                          20 26 -18.8  22.2   3:57 (316, 23)   5:00 (242, 61)
P/2017 FL36 (PanSTARRS)             05 16 +31.2  22.3  20:03 (106, 35)  18:58 (138,  9)
2015 VA108                          23 08 +01.3  22.3   3:57 (273,  7)   5:00 (255, 18)
312P/NEAT                           18 06 -00.5  22.4   3:57 (347, 54)   4:27 (180, 56)
348P/PanSTARRS                      22 29 -06.4  22.4   3:57 (285, 10)   5:00 (255, 30)
311P/PanSTARRS                      21 57 -10.4  22.5   3:57 (293, 13)   5:00 (254, 39)
316P/LONEOS-Christensen             09 01 +05.5  22.5  20:03 ( 21, 59)  19:20 (180, 50)
P/1999 XN120 (Catalina)             06 08 +23.2  22.5  20:03 ( 91, 42)  18:58 (143, 22)
112P/Urata-Niijima                  23 47 -19.1  22.6   3:57 (284,-13)   5:00 (279, 21)
317P/WISE                           23 46 +07.4  22.7   3:57 (262,  2)   5:00 (256,  7)
P/2019 U4 (PanSTARRS)               01 11 +08.2  22.9   3:57 (249,-14)   5:00 (268,-11)
P/2019 S3 (PanSTARRS)               03 04 +11.1  23.0  20:03 (105, -1)  18:58 (103, -1)
11P/Tempel-Swift-LINEAR             21 40 -01.6  23.1   3:57 (289, 22)   5:00 (242, 36)
168P/Hergenrother                   00 15 -00.7  23.3   3:57 (265, -8)   5:00 (267,  5)
P/2016 G1 (PanSTARRS)               03 14 +13.2  23.4  20:03 (105,  2)  18:58 (106,  0)
P/2012 O1 (McNaught)                03 05 +14.3  23.4  20:03 (107,  1)  18:58 (106, -3)
198P/ODAS                           06 38 +24.2  23.6  20:03 ( 88, 49)  18:58 (150, 24)
366P/Spacewatch                     23 07 -13.7  23.6   3:57 (285, -2)   5:00 (268, 27)
2008 BJ22                           20 53 -09.9  23.8   3:57 (304, 25)   5:00 (239, 50)
2018 OR                             05 55 +22.0  25.2  20:03 ( 91, 39)  18:58 (139, 21)
P/1999 RO28 (LONEOS)                06 01 +20.7  26.0  20:03 ( 89, 39)  18:58 (140, 23)

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