Comets Waiting for First Observation

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Updated on March 30, 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.

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/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 April 12 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 22 54 -02.3 14.9 4:04 (276, 5) 4:57 (260, 18) 201P/LONEOS 01 21 +08.7 16.2 4:04 (245,-18) 4:57 (272,-18) 98P/Takamizawa 23 01 -10.4 17.7 4:04 (282, -1) 4:57 (268, 22) 67P/Churyumov-Gerasimenko 22 09 -14.9 18.1 4:04 (293, 6) 4:57 (264, 35) 15P/Finlay 21 09 -23.2 18.2 4:04 (309, 11) 4:57 (264, 51) P/2014 W12 (Gibbs) 21 56 -12.5 18.2 4:04 (293, 10) 4:57 (260, 36) P/2009 U4 (McNaught) 00 26 -03.5 18.8 4:04 (264,-15) 4:57 (274, 0) 106P/Schuster 23 46 -16.5 18.8 4:04 (281,-14) 4:57 (279, 16) P/2006 S4 (Christensen) 21 05 -55.5 18.9 4:04 (332,-12) 4:57 (319, 55) 57P/du Toit-Neujmin-Delporte 15 49 -17.4 19.0 2:29 ( 0, 38) 2:29 (180, 72) 193P/LINEAR-NEAT 21 36 -20.5 19.1 4:04 (303, 9) 4:57 (265, 44) 119P/Parker-Hartley 22 09 -15.1 19.2 4:04 (293, 6) 4:57 (264, 35) P/2016 P1 (PanSTARRS) 12 56 -48.5 19.4 23:32 ( 0, 6) 23:32 ( 0, 76) 297P/Beshore 18 39 -18.3 19.7 4:04 (339, 34) 4:57 (197, 73) 179P/Jedicke 00 36 -12.4 19.8 4:04 (270,-22) 4:57 (283, 3) 108P/Ciffreo 23 31 -12.1 19.9 4:04 (279, -8) 4:57 (273, 16) P/2005 W3 (Kowalski) 00 51 +09.5 20.0 4:04 (249,-12) 4:57 (267,-12) 61P/Shajn-Schaldach 18 14 -16.7 20.0 4:04 (345, 37) 4:53 (180, 72) P/2008 CL94 (Lemmon) 06 01 +30.7 20.1 19:57 ( 99, 48) 19:03 (148, 16) 2017 MB1 00 19 -00.2 20.2 4:04 (262,-11) 4:57 (270, 0) 265P/LINEAR 02 30 +24.2 20.3 19:57 (117, 5) 19:03 (111,-13) 102P/Shoemaker 1 01 15 +22.7 20.3 4:04 (236, -7) 4:57 (258,-24) P/2011 W1 (PanSTARRS) 01 55 +09.3 20.5 19:57 (110,-11) 19:03 ( 93,-12) 274P/Tombaugh-Tenagra 02 10 +03.4 20.6 19:57 (103,-12) 19:03 ( 91, -5) P/2012 TK8 (Tenagra) 00 57 +11.4 20.6 4:04 (247,-12) 4:57 (266,-15) 19P/Borrelly 22 00 -34.1 20.6 4:04 (309, -4) 4:57 (286, 45) 298P/Christensen 15 21 -15.9 20.7 2:01 ( 0, 39) 2:01 (180, 71) P/2012 G1 (PanSTARRS) 17 20 -33.1 20.9 4:00 ( 0, 22) 4:00 (180, 88) 75D/Kohoutek 05 01 +21.6 21.0 19:57 ( 95, 33) 19:03 (131, 16) 286P/Christensen 13 55 -35.3 21.0 0:36 ( 0, 20) 0:36 ( 0, 90) 302P/Lemmon-PanSTARRS 10 36 +13.9 21.1 21:13 ( 0, 69) 21:13 (180, 41) 142P/Ge-Wang 23 28 -00.8 21.2 4:04 (270, -1) 4:57 (263, 11) 135P/Shoemaker-Levy 8 09 24 +08.8 21.2 20:01 ( 0, 64) 20:01 (180, 46) 83D/Russell 1 11 04 -15.9 21.2 21:40 ( 0, 39) 21:40 (180, 71) 77P/Longmore 03 46 +38.3 21.2 19:57 (120, 26) 19:03 (132, -8) P/2005 L1 (McNaught) 17 41 -14.6 21.3 4:04 (355, 40) 4:21 (180, 70) 195P/Hill 00 03 +29.3 21.3 4:04 (240, 9) 4:57 (244,-14) P/2004 V3 (Siding Spring) 12 29 -42.9 21.3 23:05 ( 0, 12) 23:05 ( 0, 82) 281P/MOSS 02 05 +09.4 21.3 19:57 (109, -9) 19:03 ( 95,-10) 107P/(4015) Wilson-Harrington 13 17 -11.8 21.4 23:53 ( 0, 43) 23:53 (180, 67) P/2012 T2 (PanSTARRS) 15 19 -11.3 21.4 1:59 ( 0, 44) 1:59 (180, 66) 169P/NEAT 15 55 -08.5 21.5 2:36 ( 0, 46) 2:36 (180, 64) 252P/LINEAR 04 16 +13.7 21.5 19:57 ( 94, 19) 19:03 (118, 14) D/1977 C1 (Skiff-Kosai) 04 18 +21.4 21.5 19:57 (100, 24) 19:03 (124, 9) 118P/Shoemaker-Levy 4 22 03 -11.2 21.6 4:04 (291, 10) 4:57 (259, 34) 111P/Helin-Roman-Crockett 04 33 +21.4 21.6 19:57 ( 98, 27) 19:03 (126, 11) P/1997 B1 (Kobayashi) 02 57 +27.4 21.6 19:57 (116, 11) 19:03 (117, -9) P/2015 X6 (PanSTARRS) 07 07 +24.4 21.7 19:57 ( 79, 59) 19:03 (160, 28) P/2007 S1 (Zhao) 19 28 -17.4 21.7 4:04 (325, 30) 4:57 (227, 66) 132P/Helin-Roman-Alu 2 21 34 -10.6 21.7 4:04 (295, 16) 4:57 (254, 39) (52872) Okyrhoe 22 57 -03.3 21.8 4:04 (277, 4) 4:57 (261, 18) 283P/Spacewatch 07 12 +14.7 22.0 19:57 ( 63, 55) 19:03 (157, 37) P/2019 A4 (PanSTARRS) 21 18 -15.5 22.0 4:04 (302, 15) 4:57 (256, 45) P/2010 TO20 (LINEAR-Grauer) 18 20 -25.1 22.1 4:04 (346, 28) 4:57 (184, 80) 113P/Spitaler 22 02 -11.3 22.1 4:04 (291, 10) 4:57 (259, 34) P/2007 R4 (Garradd) 20 40 -25.4 22.2 4:04 (315, 14) 4:57 (262, 58) P/2014 U4 (PanSTARRS) 01 29 +10.4 22.2 19:57 (115,-15) 19:03 ( 91,-18) 97P/Metcalf-Brewington 23 15 +01.5 22.2 4:04 (270, 3) 4:57 (260, 12) P/2016 BA14 (PanSTARRS) 04 41 +08.2 22.3 19:57 ( 85, 22) 19:03 (118, 22) P/2013 W1 (PanSTARRS) 15 19 -10.8 22.6 2:00 ( 0, 44) 2:00 (180, 66) P/2016 G1 (PanSTARRS) 22 43 -00.3 22.7 4:04 (276, 8) 4:57 (256, 19) P/2007 Q2 (Gilmore) 01 57 +07.0 22.7 19:57 (108,-12) 19:03 ( 92,-10) 324P/La Sagra 22 14 +03.6 23.0 4:04 (277, 16) 4:57 (248, 22) 104P/Kowal 2 21 36 -09.0 23.1 4:04 (294, 16) 4:57 (252, 38) 206P/Barnard-Boattini 02 43 +04.0 23.3 19:57 ( 99, -5) 19:03 ( 96, 1) P/2009 WX51 (Catalina) 19 57 -29.6 23.3 4:04 (326, 16) 4:57 (263, 68) P/2014 MG4 (Spacewatch-PanSTARRS) 07 15 +24.7 23.7 19:57 ( 78, 61) 19:03 (162, 28) P/2013 YG46 (Spacewatch) 09 11 +25.4 23.7 19:57 ( 12, 80) 19:49 (180, 30) 354P/LINEAR 13 37 -19.0 24.3 0:17 ( 0, 36) 0:17 (180, 74) 320P/McNaught 01 10 +10.6 24.7 4:04 (246,-15) 4:57 (269,-17) P/1999 J6=P/2004 V9=P/2010 H3 (SOHO)21 03 -19.8 25.7 4:04 (307, 15) 4:57 (258, 50)