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COMET OBSERVATIONS

Comet/Object
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C/2021 A1 (Leonard)

Perihelion distance : 0.61 AU
Inclination to ecliptic : 133 °
Eccentricity : 1

NASA/JPL elements
IAU/MPC elements

Magnitude and Afrho plots

All reports dump for find_orb

ADES reports dump

MPC reports dump

ICQ reports dump

Pictures gallery

Spectrums gallery

Statistics



Num Date
[TU]
 Comet/Object Name r
(/Sun)
[AU]		 d
(/Earth)
[AU]		 Pict
 Spec
 Coma
total
mag
(m1)
 m1
apert
radius
[']
 Nuclear
mag
(m2)
 m2
apert
radius
["]
 Band
 Coma
diam
[']
 Coma
cond		 Tail
length
[°]		 Tail
PA
[°]		 Afrho
[cm]		 Instr
apert
[mm]		 Instr photCat
 fltr
 Filter
 Obs
MPC
code		 Who
247902022 01 10.042C/2021 A1 (Leonard) 0.632 1.154Pict7.5 0.7 9.2 5.6 350 L L X03 pdelay
247222022 01 01.038C/2021 A1 (Leonard) 0.617 0.832Pict6.1 0.7 8.8 5.6 350 L L X03 jlvirlichie
248032021 12 30.911C/2021 A1 (Leonard) 0.622 0.757Pict6.1 1 8.4 6.5 71 R L X03 pdelay
246862021 12 28.030C/2021 A1 (Leonard) 0.631 0.680Pict6.1 1.4 9 5.6 350 L L X03 jlvirlichie
246632021 12 22.745C/2021 A1 (Leonard) 0.671 0.456Pict 400 L A77 jgbosch
246652021 12 22.722C/2021 A1 (Leonard) 0.671 0.456Pict5.5 5 10 55 A None fkugel
246642021 12 22.708C/2021 A1 (Leonard) 0.671 0.456Pict9.6 0.4 11.6 5.8 400 L IR pro A77 fkugel
246512021 12 20.716C/2021 A1 (Leonard) 0.689 0.387Pict3.7 5 10 55 A None fkugel
246562021 12 20.705C/2021 A1 (Leonard) 0.689 0.387Pict6.1 0.74 3.30 254 L None L27 jfsoulier
246442021 12 19.702C/2021 A1 (Leonard) 0.699 0.354Pict 400 L None A77 jgbosch
246412021 12 19.701C/2021 A1 (Leonard) 0.699 0.354Pict 400 L A77 jgbosch
246292021 12 18.715C/2021 A1 (Leonard) 0.709 0.324Pict5.1 1 2.5 55 A None fkugel
246502021 12 18.705C/2021 A1 (Leonard) 0.709 0.324Pict4.6 1.3 7.9 6 6 256 L None nbiver
246492021 12 18.701C/2021 A1 (Leonard) 0.709 0.324Pict4.6 1.3 7.9 6 2 6 256 L None nbiver
246482021 12 18.701C/2021 A1 (Leonard) 0.709 0.324Pict4.6 1.3 7.9 6 2 6 256 L None nbiver
246282021 12 17.694C/2021 A1 (Leonard) 0.720 0.297Pict 254 L None L27 jfsoulier
246222021 12 16.701C/2021 A1 (Leonard) 0.731 0.273Pict6.1 0.74 7.2 6 254 L None L27 jfsoulier
246232021 12 16.699C/2021 A1 (Leonard) 0.731 0.273Pict7.9 0.4 9.6 5.8 400 L IR pro fkugel
246212021 12 15.711C/2021 A1 (Leonard) 0.743 0.254Pict3.3 55 A None fkugel
246112021 12 15.711C/2021 A1 (Leonard) 0.743 0.254Pict5.8 0.74 6.9 6 254 L None L27 jfsoulier
246102021 12 15.711C/2021 A1 (Leonard) 0.743 0.254Pict7.8 0.4 8.2 5.8 400 L IR pro fkugel
245982021 12 14.705C/2021 A1 (Leonard) 0.755 0.241Pict5.8 0.4 6.3 5.8 400 L IR pro fkugel
245972021 12 14.705C/2021 A1 (Leonard) 0.755 0.241Pict5.7 0.74 6.8 6 5 45 254 L None L27 jfsoulier
245652021 12 11.263C/2021 A1 (Leonard) 0.792 0.242Pict 9.5 200 L L Z97 aleroy
245442021 12 09.227C/2021 A1 (Leonard) 0.818 0.276Pict7.1 2.9 10.1 28.85 18 76 None A77 fkugel
245432021 12 09.221C/2021 A1 (Leonard) 0.818 0.276Pict8 0.74 10 6 250 L None L27 jfsoulier
245512021 12 09.206C/2021 A1 (Leonard) 0.818 0.2768.1 0.4 11.2 5.8 400 L None A77 fkugel
245462021 12 09.206C/2021 A1 (Leonard) 0.818 0.276Pict7.6 0.4 9.6 5.8 400 L None A77 jgbosch
245302021 12 07.213C/2021 A1 (Leonard) 0.846 0.326Pict8.6 0.74 11 6 250 L None L27 jfsoulier
245312021 12 07.161C/2021 A1 (Leonard) 0.846 0.326Pict8.6 0.4 12.4 5.8 601 400 L None A77 fkugel
245242021 12 06.221C/2021 A1 (Leonard) 0.859 0.356Pict8.2 0.4 11.9 5.8 400 L None A77 jgbosch
245642021 12 06.212C/2021 A1 (Leonard) 0.859 0.356Pict 10.6 200 L L Z97 aleroy
245322021 12 06.204C/2021 A1 (Leonard) 0.859 0.356Pict 11.9 5.74 300 L None G20 ydegotlonghi
245142021 12 06.167C/2021 A1 (Leonard) 0.859 0.356Pict9.5 0.4 12.7 5.8 15 523 400 L None A77 fkugel
245112021 12 05.143C/2021 A1 (Leonard) 0.873 0.387Pict9.1 0.4 12.7 5.8 443 400 L None A77 fkugel
244972021 12 03.195C/2021 A1 (Leonard) 0.902 0.453Pict9.4 0.4 12.9 5.8 463 400 L None A77 fkugel
244932021 12 03.188C/2021 A1 (Leonard) 0.902 0.453Pict 12.3 5.74 300 L None G20 ydegotlonghi
244882021 12 02.212C/2021 A1 (Leonard) 0.917 0.487Pict9.5 0.4 12.5 5.8 456 400 L IR pro A77 fkugel
244872021 12 02.179C/2021 A1 (Leonard) 0.917 0.487Pict8.8 0.4 12.3 5.8 459 400 L None A77 fkugel
244842021 12 01.142C/2021 A1 (Leonard) 0.931 0.522Pict 12.1 7 120 R R (RGB) XXX jpdesgrees
244852021 12 01.126C/2021 A1 (Leonard) 0.931 0.522Spec 110 R None K21 hboussier
244822021 12 01.113C/2021 A1 (Leonard) 0.931 0.5228.4 0.4 12.6 5.8 390 400 L IR pro A77 fkugel
244792021 12 01.101C/2021 A1 (Leonard) 0.931 0.522Pict8.7 0.4 13 5.8 504 400 L None A77 fkugel
244662021 11 30.253C/2021 A1 (Leonard) 0.946 0.558Pict8.5 3.4 11.1 34.05 6.8 76 A None A77 fkugel
245072021 11 30.229C/2021 A1 (Leonard) 0.946 0.558Pict 11.4 200 L L Z97 aleroy
244782021 11 30.190C/2021 A1 (Leonard) 0.946 0.558Pict9.6 0.5 11.6 5.84 1 1 107.94 106 R L XXX pleguen
244692021 11 30.187C/2021 A1 (Leonard) 0.946 0.558Pict7.3 11.4 5.8 400 L None A77 jgbosch
244742021 11 30.186C/2021 A1 (Leonard) 0.946 0.558Pict 12.3 5.74 300 L None G20 ydegotlonghi
244622021 11 29.222C/2021 A1 (Leonard) 0.961 0.593Pict 12.3 5.74 300 L None G20 ydegotlonghi
244572021 11 29.213C/2021 A1 (Leonard) 0.961 0.593Pict9.6 0.4 13.2 5.8 636 400 L None A77 fkugel
244762021 11 29.197C/2021 A1 (Leonard) 0.961 0.593Pict7.8 4.5 11.9 6 9 5 0.5 315 407 L None nbiver
244752021 11 29.194C/2021 A1 (Leonard) 0.961 0.593Pict7.8 4.8 12.3 6 10 5 0.53 316 407 L None nbiver
244442021 11 28.220C/2021 A1 (Leonard) 0.976 0.629Pict10 0.4 12.9 5.8 563 400 L None A77 fkugel
244512021 11 28.209C/2021 A1 (Leonard) 0.976 0.629Pict 12.3 5.74 300 L None G20 ydegotlonghi
244402021 11 27.145C/2021 A1 (Leonard) 0.991 0.665Pict11.2 0.335 13.8 6 400 L None A77 fkugel
244342021 11 26.148C/2021 A1 (Leonard) 1.006 0.701Pict11 0.335 13.8 6 400 L None A77 fkugel
244832021 11 23.200C/2021 A1 (Leonard) 1.051 0.810Pict10.9 0.4 12.7 6 102 R X00 pdelay
244222021 11 23.187C/2021 A1 (Leonard) 1.051 0.810Pict10.6 0.4 13.2 5.8 596 400 L None A77 fkugel
244202021 11 22.194C/2021 A1 (Leonard) 1.067 0.846Pict9.9 0.4 12.7 5.8 573 400 L IR pro A77 fkugel
244182021 11 22.132C/2021 A1 (Leonard) 1.067 0.846Pict9.8 0.4 12.6 5.8 571 400 L None A77 fkugel
244172021 11 21.173C/2021 A1 (Leonard) 1.082 0.881Pict10.3 12.9 5.8 400 L None A77 jgbosch
244322021 11 20.212C/2021 A1 (Leonard) 1.098 0.917Pict 11.7 200 L L Z97 aleroy
244122021 11 20.206C/2021 A1 (Leonard) 1.098 0.917Pict10.1 0.4 12.8 5.8 778 400 L IR pro A77 fkugel
243982021 11 18.208C/2021 A1 (Leonard) 1.128 0.988Pict10.5 0.4 12.5 5.8 400 L None A77 fkugel
243942021 11 17.140C/2021 A1 (Leonard) 1.144 1.024Pict 11.9 7 120 R L XXX jpdesgrees
243782021 11 16.207C/2021 A1 (Leonard) 1.159 1.059Pict10.5 0.4 13.2 5.8 9 400 L None A77 fkugel
243652021 11 14.197C/2021 A1 (Leonard) 1.190 1.129Pict10.1 12.8 5.8 400 L None A77 fkugel
243612021 11 13.199C/2021 A1 (Leonard) 1.206 1.164Pict10.4 0.4 12.6 5.8 730 400 L IR pro A77 fkugel
243692021 11 12.241C/2021 A1 (Leonard) 1.221 1.198Pict 12.3 200 L Z97 aleroy
243532021 11 11.194C/2021 A1 (Leonard) 1.237 1.233Pict10.8 0.4 13.4 5.8 400 L None A77 fkugel
243472021 11 09.219C/2021 A1 (Leonard) 1.268 1.301Spec 254 T K10 hboussier
243272021 11 09.214C/2021 A1 (Leonard) 1.268 1.301Pict10.4 0.4 13.1 5.8 400 L None A77 fkugel
243102021 11 06.213C/2021 A1 (Leonard) 1.314 1.401Pict10.4 2.2 13.4 6 4.2 5 0.13 330 407 L None nbiver
243052021 11 06.173C/2021 A1 (Leonard) 1.314 1.401Pict11.3 13.8 5.8 400 L None A77 fkugel
242652021 10 29.201C/2021 A1 (Leonard) 1.438 1.660Pict12.4 0.4 13.8 5.8 431 400 L IR pro A77 fkugel
242512021 10 25.187C/2021 A1 (Leonard) 1.499 1.784Pict11.5 0.4 14.4 5.8 400 L None A77 jgbosch
242272021 10 24.190C/2021 A1 (Leonard) 1.514 1.814Pict12.9 0.4 14.9 5.8 400 L None A77 fkugel
242092021 10 19.193C/2021 A1 (Leonard) 1.590 1.962Pict13.1 0.4 15.7 5.8 400 L None A77 fkugel
241842021 10 16.194C/2021 A1 (Leonard) 1.635 2.048Pict13.3 0.4 16 5.8 400 L None A77 fkugel
241592021 10 14.195C/2021 A1 (Leonard) 1.665 2.105Pict 15.4 5.8 400 L None A77 jgbosch
241792021 10 14.163C/2021 A1 (Leonard) 1.665 2.105Pict12.2 1.2 14.8 6 2 5 0.05 340 407 L None nbiver
241302021 10 11.176C/2021 A1 (Leonard) 1.710 2.187Pict13.4 0.4 15.5 5.8 400 L None A77 fkugel
241362021 10 09.193C/2021 A1 (Leonard) 1.740 2.240Pict12.4 1.4 15.4 6 1.5 3 0.07 340 407 L None nbiver
240972021 10 08.168C/2021 A1 (Leonard) 1.755 2.267Pict 0.4 16.1 5.8 400 L None A77 fkugel
240422021 09 29.162C/2021 A1 (Leonard) 1.887 2.493Pict12.8 0.4 15.4 5.8 400 L None A77 fkugel
240172021 09 24.169C/2021 A1 (Leonard) 1.959 2.609Pict13.2 0.4 15.4 5.8 400 L None A77 fkugel
240072021 09 23.169C/2021 A1 (Leonard) 1.973 2.632Pict13 0.4 16.3 5.8 400 L None A77 fkugel
239952021 09 22.168C/2021 A1 (Leonard) 1.988 2.654Pict13.4 0.4 16.5 5.8 400 L None A77 fkugel
239822021 09 19.178C/2021 A1 (Leonard) 2.031 2.719Pict12.8 0.8 15.9 8.3 400 L None A77 fkugel
239142021 09 05.856C/2021 A1 (Leonard) 2.227 2.991Pict14.2 0.5 16.0 6 0.8 5 407 L None nbiver
238342021 08 06.899C/2021 A1 (Leonard) 2.632 3.402Pict15.6 0.5 17.0 6 0.8 5 0.02 50 407 L None nbiver
238332021 08 02.886C/2021 A1 (Leonard) 2.684 3.440Pict15.7 0.5 17.1 6 0.6 5 407 L None nbiver
235642021 07 05.865C/2021 A1 (Leonard) 3.041 3.604Pict 0.4 17.8 5.8 400 L None A77 fkugel
235322021 06 29.890C/2021 A1 (Leonard) 3.116 3.619Pict 17.5 6 250 L None L27 jfsoulier
234892021 06 12.865C/2021 A1 (Leonard) 3.323 3.631 17.9 5.8 400 L None A77 fkugel
238412021 06 07.968C/2021 A1 (Leonard) 3.383 3.629Pict16.9 0.5 18.1 6 0.6 5 407 L None nbiver
234022021 05 30.861C/2021 A1 (Leonard) 3.478 3.620Pict 0.4 17.7 5.8 400 L None A77 fkugel
233942021 05 27.940C/2021 A1 (Leonard) 3.514 3.616Pict 17.6 6.5 300 L None C10 jfsoulier
233892021 05 24.871C/2021 A1 (Leonard) 3.549 3.611Pict 17.8 5.8 400 L None A77 fkugel
233822021 05 19.862C/2021 A1 (Leonard) 3.607 3.604Pict 16.4 5.8 400 L A77 jgbosch
233732021 05 15.860C/2021 A1 (Leonard) 3.654 3.598Pict 17.9 1230 R (RGB) 493 aleroy
233532021 05 08.832C/2021 A1 (Leonard) 3.735 3.588Pict 18 5.8 400 L A77 jgbosch
233372021 05 05.844C/2021 A1 (Leonard) 3.769 3.585Pict 0.4 17.9 5.8 400 L None A77 fkugel
232842021 04 23.924C/2021 A1 (Leonard) 3.906 3.580Pict 16.8 5.8 400 L A77 jgbosch
232612021 04 21.970C/2021 A1 (Leonard) 3.929 3.581Pict 17.8 6 250 L None C10 jfsoulier
232442021 04 20.048C/2021 A1 (Leonard) 3.940 3.582Pict 17.9 6.5 300 L None C10 jfsoulier
232432021 04 20.048C/2021 A1 (Leonard) 3.940 3.582Pict 17.9 6.5 300 L None C10 jfsoulier
232162021 04 14.991C/2021 A1 (Leonard) 4.007 3.589Pict 0.4 18.6 5.8 400 L None A77 fkugel
231502021 04 02.131C/2021 A1 (Leonard) 4.140 3.625Pict 0.4 18.3 5.8 400 L None A77 fkugel
230972021 03 20.876C/2021 A1 (Leonard) 4.283 3.701Pict 18 6.5 300 L None C10 jfsoulier
230052021 02 27.999C/2021 A1 (Leonard) 4.509 3.917Pict 18.2 6.5 300 L None C10 jfsoulier
229032021 01 26.239C/2021 A1 (Leonard) 4.845 4.452Pict 0.4 18.9 5.8 400 L None A77 fkugel
228812021 01 18.196C/2021 A1 (Leonard) 4.927 4.615Pict 18.1 5.8 400 L None A77 fkugel
228672021 01 16.148C/2021 A1 (Leonard) 4.947 4.657Pict 19.2 5.8 400 L None A77 fkugel

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