Comets discovered in 2021
The format of this file is similar to that of the Catalogue
of Comet Discoveries.
C/2021 A1 2021 01 03.542 14 03.9 +40 52 93M C150L 2 0.2 19 USA G96 C4907 x Leonard
C/2021 A2 2021 01 03.022 10 59.8 -50 45 89M C 40 3 2 12 SAT C51 C4908 NEOWISE
C/2021 A4 2021 01 03.919 14 25.7 +39 07 89M C 40 3 0.2 19 SAT C51 C4914 x NEOWISE
P/2021 A5 2021 01 06.298 00 41.3 +25 42 94E C180Y 4 20.5 USA F51 C4915 x PANSTARRS
C/2021 A6 2021 01 08.603 10 44.7 -09 29 120M C180Y 4 0.1 19.5 USA F51 C4916 x PANSTARRS
C/2021 A7 2021 01 09.109 06 31.7 -67 41 90E C 40 3 0.2 18 SAT C51 C4917 NEOWISE
C/2021 A9 2021 01 12.642 11 12.6 +15 47 129M C180Y 4 20.5 USA F51 C4922 x PANSTARRS
C/2021 A10 2021 01 12.163 13 46.3 +08 21 90M C 40 4 0.1 20 USA C51 C4930 x NEOWISE
C/2021 B2 2021 01 17.232 03 27.9 -20 57 102E C180Y 4 0.1 19.5 USA F51 C4921 x PANSTARRS
C/2021 B3 2021 01 22.249 08 43.4 -70 37 90M C 40 3 0.2 18.5 SAT C51 C4929 NEOWISE
C/2021 C1 2021 02 11.443 13 40.0 -17 36 113M C150L 2 0.1 19.5 USA G96 C4934 Rankin
P/2021 C2 2021 02 12.529 10 23.8 +38 42 153M C180Y 4 21.5 USA F51 C4935 x PANSTARRS
C/2021 C3 2021 02 07.460 13 38.3 -15 59 110M C 68D 2 0.2 19.5 USA 703 C4936 x Catalina
C/2021 C4 2021 02 12.611 14 54.3 -43 58 89M C 50D 2 0.2 18.5 USA T05 C4937 ATLAS
C/2021 C5 2021 02 12.345 09 37.6 +17 55 176E C180Y 4 0.1 21 USA F51 C4941 x PANSTARRS
C/2021 C6 2021 02 07.432 13 08.0 +03 02 124M C150L 2 0.1 21 USA G96 C4946 x Lemmon
C/2021 D1 2021 02 19.5 22 50.5 +07 07 21E P R 3.5 10.5 SAT 249 C4939 SWAN (Mattiazzo)
C/2021 D2 2021 02 19.555 20 27.4 +27 10 46M C124D 2 0.2 19 USA I41 C4948 ZTF
C/2021 E3 2021 03 09.529 20 45.8 +30 53 51M C124D 2 0.1 19.5 USA I41 C4960 ZTF
C/2021 F1 2021 03 19.390 13 56.2 +12 37 148M C150L 2 21 USA G96 C5095 Lemmon-PANSTARRS
19.410 13 56.2 +12 38 148M C180Y 4 USA F51
C/2021 G1 2021 04 11.327 14 19.2 +55 05 115M C150L 2 0.1 21 USA G96 C4959 Leonard
C/2021 G2 2021 04 11.249 06 23.4 -21 35 80E C 50D 2 0.1 19 USA T08 C5057 x ATLAS
C/2021 G3 2021 04 01.255 09 19.5 +01 02 129E C180Y 4 21.5 USA F51 C4990 x PANSTARRS
P/2021 HS 2021 04 16.367 12 32.6 -28 36 157E C180Y 4 20 USA F51 C5043 x PANSTARRS
C/2021 J1 2021 05 09.333 20 05.9 -35 16 112M C 28D 2 0.2 18.5 CHL W94 A C4972 Maury-Attard
C/2021 J2 2021 05 10.409 15 11.2 -04 31 167M C180Y 4 21.5 USA F51 C4973 x PANSTARRS
P/2021 J3 2021 05 13.545 20 56.3 -20 08 102M C 50D 2 0.1 18.5 USA T08 C4974 ATLAS
C/2021 K1 2021 05 14.594 23 24.8 -05 54 64M C 50D 2 0.3 17 USA T05 C4968 x ATLAS
C/2021 K2 2021 05 22.978 20 38.5 -50 50 118M C 40L 3 0.3 18.5 ZAF K95 C4975 x MASTER
C/2021 K3 2021 05 20.422 21 24.0 +05 04 94M C229L 3 0.1 21 USA V00 C4991 Catalina
P/2021 L2 2021 06 08.396 21 27.4 +01 29 112M C150L 2 0.1 20 USA G96 C4984 x Leonard
C/2021 L3 2021 06 08.906 22 05.3 +71 45 73M C 64A 2 0.2 20 UKR L51 A C4985 Borisov
P/2021 L4 2021 06 14.271 15 30.2 -19 01 152E C180Y 4 0.1 20.5 USA F51 C4986 x 456P/PANSTARRS
P/2021 N1 2021 07 02.464 02 52.0 +24 34 53M C124D 2 0.2 18.5 USA I41 C4999 x ZTF
P/2021 N2 2021 07 09.436 02 00.7 +17 24 73M C 68D 2 0.1 18 USA 703 C5000 x Fuls
C/2021 N3 2021 07 13.515 21 50.1 -26 06 148M C180Y 4 0.1 19.5 USA F51 C5003 x PANSTARRS
P/2021 N4 2021 07 08.530 23 07.8 +09 16 114M C180Y 4 21.5 USA F51 C5019 x 432P/PANSTARRS
C/2021 O1 2021 07 21.783 06 31.6 +30 38 23M C 20A 3 2.5 9.5 JAP A C5004 x Nishimura
C/2021 O3 2021 07 26.481 23 27.2 +27 48 115M C180Y 4 0.1 19 USA F51 C5009 PANSTARRS
C/2021 P1 2021 08 09.509 00 31.6 +02 34 129M C180Y 4 0.1 21 USA F51 C5020 x PANSTARRS
C/2021 P2 2021 08 07.524 01 01.8 +18 57 114M C180Y 4 21 USA F51 C5023 x PANSTARRS
P/2021 P3 2021 08 11.585 00 24.5 -03 40 134M C180Y 4 0.1 19.5 USA F51 C5022 x PANSTARRS
C/2021 P4 2021 08 10.537 01 06.9 +55 52 94M C 50D 2 0.2 19.5 USA T05 C5024 ATLAS
P/2021 PE20 2021 08 12.589 03 41.7 -08 35 89M C 50D 2 0.1 18.5 USA T05 C5220 x ATLAS
C/2021 Q3 2021 08 26.297 15 36.1 +82 48 78E C 50D 2 0.2 19 USA T05 C5027 x ATLAS
C/2021 Q4 2021 08 26.299 19 17.2 +50 32 107E C150L 2 0.1 19.5 USA G96 C5028 x Fuls
P/2021 Q5 2021 08 29.607 06 50.7 +22 54 55M C 50D 2 2 15 USA T05 C5029 ATLAS
C/2021 Q6 2021 08 22.520 02 19.1 +33 40 105M C180Y 4 21 USA F51 C5032 x PANSTARRS
C/2021 QM45 2021 08 17.513 23 57.1 -02 14 146M C180Y 4 21 USA F51 C5145 x PANSTARRS
P/2021 R1 2021 09 04.355 23 47.0 -05 03 166M C180Y 4 0.1 20 USA F51 C5030 x PANSTARRS
C/2021 R2 2021 09 05.339 23 31.7 +18 33 153M C180Y 4 0.1 20 USA F52 C5031 x PANSTARRS
P/2021 R3 2021 09 05.319 21 39.1 +03 10 158E C180Y 4 0.2 20.5 USA F51 C5036 x PANSTARRS
P/2021 R4 2021 09 06.402 00 23.2 +27 47 140M C150L 2 0.3 20.5 USA G96 C5034 x Wierzchos
P/2021 R5 2021 09 09.286 00 34.2 +10 33 154M C150L 2 0.2 19 USA G96 C5035 x Rankin
P/2021 R6 2021 09 12.459 02 35.2 -06 52 132M C150L 2 0.1 20 USA G96 C5045 x Groeller
C/2021 R7 2021 09 05.426 00 57.7 +17 23 142M C180Y 4 0.1 21.5 USA F52 C5050 x PANSTARRS
P/2021 R8 2021 09 05.548 23 20.9 -04 10 174M C820L 2 21.5 USA T09 C5079 x Sheppard
P/2021 R9 2021 09 05.615 00 19.5 +10 53 153M C820L 2 22 USA T09 C5152 x Sheppard-Tholen
C/2021 S1 2021 09 27.570 06 54.2 +57 39 86M C 50D 2 0.2 18.5 USA T05 C5047 ATLAS
C/2021 S3 2021 09 24.561 05 23.0 -20 37 100M C180Y 4 0.1 19.5 USA F52 C5051 PANSTARRS
C/2021 S4 2021 09 29.772 01 20.2 +14 40 162M C104D 2 0.1 20 CHN D29 C5052 x Tsuchinshan
C/2021 T1 2021 10 02.208 23 53.0 +44 30 138E C150L 2 0.2 19 USA G96 C5053 x Lemmon
C/2021 T2 2021 10 02.376 04 12.4 +46 16 116M C150L 2 0.2 19.5 USA G96 C5054 Fuls
P/2021 T3 2021 10 02.404 01 24.1 -28 45 145M C180Y 4 0.2 20.5 USA F51 C5056 x 435P/PANSTARRS
C/2021 T4 2021 10 07.349 04 02.7 +12 02 132M C150L 2 0.1 20 USA G96 C5063 x Lemmon
P/2021 TR81 2021 10 08.390 03 57.0 +15 50 134M C150L 2 21 USA G96 C5550 x Lemmon
P/2021 U1 2021 10 18.352 02 49.9 +40 11 145M C150L 2 0.2 20 USA G96 C5058 x Wierzchos
P/2021 U3 2021 10 24.313 06 26.8 -11 29 109M C 28D 2 0.2 18.5 CHL W94 A C5064 Attard-Maury
C/2021 U4 2021 10 31.300 02 40.2 -11 31 154M C150L 2 0.1 19.5 USA G96 C5065 x Leonard
C/2021 U5 2021 10 29.491 08 58.6 -20 02 75M C 68D 2 0.2 18.5 USA 703 C5070 Catalina
C/2021 V1 2021 11 05.161 23 27.1 +33 51 133E C150L 2 0.1 20 USA G96 C5067 x Rankin
P/2021 V2 2021 11 07.303 04 25.4 +18 40 157M C150L 2 0.1 19.5 USA G96 C5068 x Fuls
P/2021 V3 2021 11 01.495 02 51.4 +18 24 173M C180Y 4 0.1 20.5 USA F51 C5069 x 437P/Lemmon-PANSTARRS (PANSTARRS)
C/2021 X1 2021 12 02.324 08 25.3 -22 38 108M C 28D 2 0.2 18.5 CHL W94 A C5119 x Maury-Attard
C/2021 X2 2021 12 01.378 05 13.2 +55 56 145M C229L 3 21.5 USA V00 C5363 x BOK
C/2021 Y1 2021 12 26.285 01 22.2 +56 15 118E C 50D 2 0.1 18 USA T08 C5089 x ATLAS