Home

COMET OBSERVATIONS

Comet/Object
Begin
End
Observer
Observatory
Configuration


C/2020 R4 (ATLAS)

Orbital period : 974.10 years

NASA/JPL elements
IAU/MPC elements

Magnitude and Afrho plots

MPC reports dump

ICQ reports dump

Pictures gallery

Spectrums gallery

Statistics



Num Date
[TU]
Julian day
-2400000
Comet/Object Name r
(/Sun)
[AU]
d
(/Earth)
[AU]
Pict
Spec
Coma
Total
mag
(m1)
Nuclear
mag
(m2)
Coma
diameter
[']
Coma
conden
sation
Tail
length
[°]
Tail
position
angle

[°]
Afrho
[cm]
Instr
diameter
[mm]
Instr m1
aperture
radius
[']
m2
aperture
radius
["]
Obs
MPC
code
Who
234082021 05 31.859367.35713C/2020 R4 (ATLAS) 1.761 1.450Pict--16.9 --- - -400L -5.8A77fkugel
233802021 05 19.859355.34467C/2020 R4 (ATLAS) 1.621 1.049Pict--16.5 --- - -400L -5.8A77jgbosch
233592021 05 11.859347.35741C/2020 R4 (ATLAS) 1.531 0.796Pict--15.3 --- - -400L -5.8A77jgbosch
233472021 05 08.959344.41057C/2020 R4 (ATLAS) 1.497 0.709Pict--14.2 --- - -160L -8.75A58jbdevanssay
233502021 05 08.859344.37271C/2020 R4 (ATLAS) 1.497 0.709Pict--15.2 --- - -400L -5.8A77jgbosch
233552021 05 08.859344.32807C/2020 R4 (ATLAS) 1.497 0.709Pict--15.3 --- - -200L -6.25G20ydegotlonghi
233442021 05 07.859343.34184C/2020 R4 (ATLAS) 1.486 0.681Pict--14.8 --- - -200L -6.25G20ydegotlonghi
233362021 05 05.859341.35904C/2020 R4 (ATLAS) 1.464 0.629Pict-11.612.9 --- - -400L 0.45.8A77fkugel
233342021 05 04.859340.33203C/2020 R4 (ATLAS) 1.453 0.605Pict--14.5 --- - -200L -6.25G20ydegotlonghi
233212021 05 04.059339.51117C/2020 R4 (ATLAS) 1.453 0.605Pict-10.813.5 --- - -200L 1.6510L27jfsoulier
233292021 05 03.859339.36812C/2020 R4 (ATLAS) 1.443 0.582Pict-10.913.2 --0.78 - -400L -5.8A77jgbosch
233152021 05 03.859339.33402C/2020 R4 (ATLAS) 1.443 0.582Pict-10.612.8 --- - -76- 2.428.8A77fkugel
233142021 05 03.059338.53116C/2020 R4 (ATLAS) 1.443 0.582Pict--13.3 --- - -400L -5.8A77maudejean
233112021 05 02.859338.34503C/2020 R4 (ATLAS) 1.432 0.560Pict--14.5 --- - -200L -6.25G20ydegotlonghi
233072021 05 01.859337.37105C/2020 R4 (ATLAS) 1.421 0.540Pict--12.8 --- - -200L --Z97aleroy
233042021 05 01.859337.34618C/2020 R4 (ATLAS) 1.421 0.540Pict-1214.1 --- - -400L 0.45.8A77fkugel
233032021 04 29.959335.40574C/2020 R4 (ATLAS) 1.400 0.506Pict--14 --- - -200L -5G20ydegotlonghi
232982021 04 28.059333.54303C/2020 R4 (ATLAS) 1.389 0.493Pict-09.811.9 --- - -300L 1.089.7C10jfsoulier
233092021 04 27.959333.45208C/2020 R4 (ATLAS) 1.379 0.481-Spec-- --- - -250L ---jmvienney
233082021 04 26.959332.48611C/2020 R4 (ATLAS) 1.369 0.473-Spec-- --- - -250L ---jmvienney
232732021 04 24.159329.60366C/2020 R4 (ATLAS) 1.348 0.464Pict-11.513.8 --- - -400L 0.45.8A77fkugel
232772021 04 24.059329.59166C/2020 R4 (ATLAS) 1.348 0.464Pict-12.713.1 --- - -85R 112-mirzyk
232912021 04 23.959329.4365C/2020 R4 (ATLAS) 1.338 0.464Pict--12.2 --- - -160L -10.5A58jbdevanssay
232712021 04 23.959329.4008C/2020 R4 (ATLAS) 1.338 0.464Pict-1112.4 --- - -300L 1.089.7C10jfsoulier
232812021 04 23.859329.38513C/2020 R4 (ATLAS) 1.338 0.464Pict--11.3 --- - -400L -5.8A77jgbosch
232702021 04 22.859328.37915C/2020 R4 (ATLAS) 1.328 0.466Pict--13.3 --- - -200L --Z97aleroy
232622021 04 22.059327.59305C/2020 R4 (ATLAS) 1.328 0.466Pict-12.612.9 --- - -85R 112-mirzyk
232532021 04 22.059327.57249C/2020 R4 (ATLAS) 1.328 0.466Pict-12.715.6 --- - -400L 0.45.8A77fkugel
232492021 04 21.059326.56033C/2020 R4 (ATLAS) 1.318 0.472Pict-11.613.1 --- - -250L 115C10jfsoulier
232512021 04 20.959326.40397C/2020 R4 (ATLAS) 1.308 0.480Pict--14.4 --- - -300- --XXXaleroy
232372021 04 20.159325.60383C/2020 R4 (ATLAS) 1.308 0.481Pict-12.615.1 --- - -400L 0.45.8A77fkugel
232142021 04 15.159320.63907C/2020 R4 (ATLAS) 1.261 0.556Pict--15.7 --- - -400L -5.8A77fkugel
232042021 04 13.059318.59362C/2020 R4 (ATLAS) 1.243 0.598Pict-1216.2 --- - -400L 0.45.8A77fkugel
231882021 04 08.159313.65567C/2020 R4 (ATLAS) 1.199 0.723Pict-12.415.8 --- - -400L 0.45.8A77fkugel
231782021 04 05.359310.83743C/2020 R4 (ATLAS) 1.175 0.805Pict--13.6 --- - -350L -11X03jlvirlichie
231702021 04 05.159310.63815C/2020 R4 (ATLAS) 1.175 0.805Pict--16 5.2-- - -400L -5.8A77fkugel
231492021 04 02.159307.6601C/2020 R4 (ATLAS) 1.152 0.890Pict-12.415.8 --- - -400L 0.45.8A77fkugel
231392021 03 31.159305.67061C/2020 R4 (ATLAS) 1.138 0.947Pict-12.415.8 --- - -400L 0.45.8A77fkugel
231402021 03 31.159305.66704C/2020 R4 (ATLAS) 1.138 0.947Pict--12.9 3-- - -76- -29A77fkugel
231352021 03 29.159303.66785C/2020 R4 (ATLAS) 1.124 1.005Pict-12.215.6 --- - -400L 0.45.8A77fkugel
231302021 03 28.159302.64336C/2020 R4 (ATLAS) 1.117 1.034Pict-11.715.3 5-- 265 -400L 0.45.8A77fkugel
231172021 03 25.159299.67478C/2020 R4 (ATLAS) 1.099 1.120Pict--14.5 --- - -400L -5.8A77fkugel
231062021 03 23.159297.67705C/2020 R4 (ATLAS) 1.088 1.177Pict-12.315.4 --- - -400L 0.45.8A77fkugel
230952021 03 21.159295.67534C/2020 R4 (ATLAS) 1.077 1.233Pict--15.8 --- - -400L -5.8A77fkugel
230912021 03 20.159294.67965C/2020 R4 (ATLAS) 1.072 1.261Pict-11.715.5 --- - -400L 0.45.8A77fkugel
230882021 03 20.159294.65128C/2020 R4 (ATLAS) 1.072 1.261Pict--13.7 --- - -300L -8.1C10jfsoulier
230812021 03 18.159292.68828C/2020 R4 (ATLAS) 1.063 1.316Pict-11.815.5 --- - -400L 0.45.8A77fkugel
230712021 03 17.159291.69664C/2020 R4 (ATLAS) 1.059 1.343Pict-11.214.8 2-- - -400L 0.45.8A77fkugel
228002020 12 26.759211.2193C/2020 R4 (ATLAS) 1.485 2.053Pict-13.716.1 --- - -400L 0.45.8A77fkugel
227652020 12 12.759197.23591C/2020 R4 (ATLAS) 1.643 1.898---16.3 --- - -400L -5.8A77fkugel
226102020 11 12.759167.28148C/2020 R4 (ATLAS) 1.996 1.500Pict--18.1 --- - -400L -5.8A77fkugel
226072020 11 11.759166.22052C/2020 R4 (ATLAS) 2.008 1.489---17.7 --- - -400L -5.8A77fkugel
225222020 10 19.159142.6825C/2020 R4 (ATLAS) 2.281 1.373Pict--17.9 --- - -350L -5.6X03jlvirlichie
224832020 10 13.159136.63536C/2020 R4 (ATLAS) 2.352 1.403Pict--18 --- - -350L -5.6X03jlvirlichie

Home