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Comet/Object
Begin
End
Observer
Observatory
Configuration


C/2019 Y4 (ATLAS)

Orbital period : 5870.00 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
220002020 05 16.858987.38125C/2019 Y4 (ATLAS) 0.532 0.815Pict--15.8 --- - -250L -7.4C10jfsoulier
219902020 05 15.858986.3823C/2019 Y4 (ATLAS) 0.556 0.823Pict--15.4 --- - -250L -6C10jfsoulier
219942020 05 15.858986.34723C/2019 Y4 (ATLAS) 0.556 0.823Pict--17 --- - -400L -5.8A77fkugel
219762020 05 04.858975.35675C/2019 Y4 (ATLAS) 0.812 0.903Pict--17.3 --- - -400L -5.8A77fkugel
219672020 05 03.858974.3592C/2019 Y4 (ATLAS) 0.834 0.910Pict--15.7 --- - -200L -6.6L27jfsoulier
219722020 05 03.858974.35151C/2019 Y4 (ATLAS) 0.834 0.910Pict--15.9 --- - -200T -7.65G20ydegotlonghi
219742020 05 01.858972.38819C/2019 Y4 (ATLAS) 0.879 0.922Pict-09.714.9 51- 40 -407L 2.56-nbiver
219432020 04 28.858969.33527C/2019 Y4 (ATLAS) 0.944 0.940Pict-13.717.5 --- - -400L 0.45.8A77fkugel
219552020 04 26.858967.38584C/2019 Y4 (ATLAS) 0.986 0.950Pict--16.2 --- - -200T -7.65G20ydegotlonghi
219312020 04 25.958966.43583C/2019 Y4 (ATLAS) 1.007 0.956Pict--16.5 --- - -250L -4.5C10jfsoulier
219392020 04 25.858966.39028C/2019 Y4 (ATLAS) 1.007 0.956Pict--13.6 --- - -200L --XXXaleroy
219402020 04 25.858966.37847C/2019 Y4 (ATLAS) 1.007 0.956Pict-09.815.4 51- - -407L 2.56-nbiver
219582020 04 24.858965.36603C/2019 Y4 (ATLAS) 1.028 0.960Pict--16.4 --- - -200T -7.65G20ydegotlonghi
219512020 04 23.858964.32229C/2019 Y4 (ATLAS) 1.049 0.965Pict--16.2 --- - -200T -9.18G20ydegotlonghi
219222020 04 22.858963.38164C/2019 Y4 (ATLAS) 1.069 0.970Pict--12.9 --- - -200L --XXXaleroy
219462020 04 22.858963.37152C/2019 Y4 (ATLAS) 1.069 0.970Pict-10.215.1 4.51- - -407L 2.56-nbiver
219122020 04 18.858959.32995C/2019 Y4 (ATLAS) 1.150 0.987Pict-12.916.5 10-- - -400L 0.45.8A77fkugel
219152020 04 18.858959.31857C/2019 Y4 (ATLAS) 1.150 0.987Pict--16.4 --- - -200T -5.1G20ydegotlonghi
219042020 04 17.158957.62551C/2019 Y4 (ATLAS) 1.170 0.991Pict--15.5 --- - -510L -5.67H06jbdevanssay
219012020 04 16.858957.32569C/2019 Y4 (ATLAS) 1.190 0.994Pict-12.916.3 --- - -400L 0.45.8A77fkugel
219092020 04 15.958956.44236C/2019 Y4 (ATLAS) 1.210 0.998Pict--15.1 --- - -300Y -5-mirzyk
219162020 04 15.858956.34645C/2019 Y4 (ATLAS) 1.210 0.998Pict-12.5- -1- - -102R 0.3-XXXaleroy
218882020 04 15.858956.33789C/2019 Y4 (ATLAS) 1.210 0.998Pict--16.9 --- - -400L -5.8A77fkugel
218912020 04 15.858956.31705C/2019 Y4 (ATLAS) 1.210 0.998Pict--16.3 --- - -200T -4.4G20ydegotlonghi
218922020 04 15.858956.3118C/2019 Y4 (ATLAS) 1.210 0.998Pict--15.1 --- - -300- -6.7178jgbosch
219082020 04 14.958955.42916C/2019 Y4 (ATLAS) 1.229 1.002Pict-12.315 --- - -300Y 0.55-mirzyk
218792020 04 14.858955.38954C/2019 Y4 (ATLAS) 1.229 1.002Pict--14.8 --- - -203- -6.2K21hboussier
218842020 04 14.858955.36666C/2019 Y4 (ATLAS) 1.229 1.002Pict--- --- - -180L ---dlamirel
218852020 04 14.858955.32868C/2019 Y4 (ATLAS) 1.229 1.002Pict--16.8 --- - -400L -5.8A77fkugel
218782020 04 14.858955.32524C/2019 Y4 (ATLAS) 1.229 1.002Pict--15.3 --- - -200L -5L27jfsoulier
218802020 04 14.858955.31745C/2019 Y4 (ATLAS) 1.229 1.002Pict--15.1 --- - -300- -6.7178jgbosch
218862020 04 14.858955.31356C/2019 Y4 (ATLAS) 1.229 1.002Pict--16.7 --- - -200T -3.52G20ydegotlonghi
219192020 04 13.858954.38773C/2019 Y4 (ATLAS) 1.249 1.005Pict--14.8 --- - -102R --XXXaleroy
218752020 04 12.858953.3993C/2019 Y4 (ATLAS) 1.268 1.009Pict-10.414.9 41- - -407L 2.06-nbiver
218692020 04 11.858952.3774C/2019 Y4 (ATLAS) 1.287 1.012Pict--14.5 --- - -250L -7.5C10jfsoulier
218762020 04 11.858952.34661C/2019 Y4 (ATLAS) 1.287 1.012---16.4 --- - -400L -4.15A77fkugel
218722020 04 11.858952.34375C/2019 Y4 (ATLAS) 1.287 1.012Pict-12.216.5 --- - -400L 0.45.8A77fkugel
218732020 04 11.858952.31028C/2019 Y4 (ATLAS) 1.287 1.012Pict--15.8 --- - -200T -5.1G20ydegotlonghi
218672020 04 11.858952.30767C/2019 Y4 (ATLAS) 1.287 1.012Pict-11.814.4 --- - -200L 0.558.2L27jfsoulier
218602020 04 10.858951.32767C/2019 Y4 (ATLAS) 1.307 1.016Pict--14.6 --- - -300- -6.7178jgbosch
218522020 04 10.858951.32715C/2019 Y4 (ATLAS) 1.307 1.016Pict-11.714.2 --- - -200L 0.558.2L27jfsoulier
218532020 04 10.858951.31635C/2019 Y4 (ATLAS) 1.307 1.016Pict--15.6 --- - -200T -5.1G20ydegotlonghi
218742020 04 09.958950.4125C/2019 Y4 (ATLAS) 1.326 1.019Pict-12.814.8 --- - -300Y 0.35-mirzyk
218502020 04 09.858950.35743C/2019 Y4 (ATLAS) 1.326 1.019Pict--14.6 --- - -203T -6.2K21hboussier
218472020 04 09.858950.34211C/2019 Y4 (ATLAS) 1.326 1.019Pict--16.4 --- - -400L -5.8A77fkugel
218462020 04 09.858950.33036C/2019 Y4 (ATLAS) 1.326 1.019Pict-12.814 --- - -200L 0.278.2L27jfsoulier
218482020 04 09.858950.30475C/2019 Y4 (ATLAS) 1.326 1.019Pict--15.4 --- - -200T -5.1G20ydegotlonghi
218492020 04 08.858949.39009C/2019 Y4 (ATLAS) 1.345 1.022Pict--14.2 --- - -203T -6.2K21hboussier
218432020 04 08.858949.30118C/2019 Y4 (ATLAS) 1.345 1.022Pict--15.2 --- - -200T -5.1G20ydegotlonghi
218412020 04 07.858948.35315C/2019 Y4 (ATLAS) 1.363 1.025Pict--14.9 --- - -200T -5.1G20ydegotlonghi
218402020 04 07.858948.32728C/2019 Y4 (ATLAS) 1.363 1.025Pict-12.416.2 --- - -400L 0.45.8A77fkugel
218312020 04 06.858947.36527C/2019 Y4 (ATLAS) 1.382 1.029Pict--14.2 --- - -200T -5.1G20ydegotlonghi
218332020 04 06.858947.32136C/2019 Y4 (ATLAS) 1.382 1.029Pict--15.9 --- - -400L -5.8A77fkugel
218422020 04 05.858946.38402C/2019 Y4 (ATLAS) 1.401 1.032Pict-11.614.5 --- - -300Y 15-mirzyk
218282020 04 04.858945.38333C/2019 Y4 (ATLAS) 1.420 1.035Pict-11.515 --- - -300Y 15-mirzyk
218242020 04 04.858945.32623C/2019 Y4 (ATLAS) 1.420 1.035Pict-11.313.2 --- - -200L 0.558.2L27jfsoulier
218182020 04 03.858944.36228C/2019 Y4 (ATLAS) 1.438 1.039Pict--12.9 --- - -200L -8.2L27jfsoulier
218262020 04 03.858944.33889C/2019 Y4 (ATLAS) 1.438 1.039Pict--14 --- - -400L -5.95A77fkugel
218272020 04 02.858943.33734C/2019 Y4 (ATLAS) 1.456 1.042---13.6 --- - -400L -5.95A77fkugel
218042020 03 31.958941.4025C/2019 Y4 (ATLAS) 1.493 1.049Pict-11.212.8 --- - -250L 0.587.4C10jfsoulier
217942020 03 28.858938.3085C/2019 Y4 (ATLAS) 1.547 1.059Pict-11.214.2 --- - -400L 0.45.8A77fkugel
217852020 03 27.958937.41126C/2019 Y4 (ATLAS) 1.565 1.063Pict-10.812.4 9.10-0.18 135 -250L 0.757.4C10jfsoulier
217912020 03 26.958936.46944C/2019 Y4 (ATLAS) 1.582 1.067-Spec-- --- - -200L ---pledu
217842020 03 26.958936.45833C/2019 Y4 (ATLAS) 1.582 1.067-Spec-- --- - -280T ---ebertrand
217822020 03 26.858936.3308C/2019 Y4 (ATLAS) 1.582 1.067Pict-11.514.1 --- - -400L 0.45.8A77fkugel
217902020 03 26.058935.53263C/2019 Y4 (ATLAS) 1.582 1.067-Spec-- --- - -200L ---pledu
217782020 03 24.958934.40574C/2019 Y4 (ATLAS) 1.618 1.075Pict--12.8 --- - -120R -7.2XXXjlvirlichie
217792020 03 24.058933.50483C/2019 Y4 (ATLAS) 1.635 1.079-Spec-- --- - -200L ---pledu
218202020 03 23.958933.45902C/2019 Y4 (ATLAS) 1.635 1.079Pict-1212.9 --- - -106R 19.3-mirzyk
217742020 03 23.858933.33464C/2019 Y4 (ATLAS) 1.635 1.079Pict--12.8 --- - -300- -6.7178jgbosch
218152020 03 22.958932.46805C/2019 Y4 (ATLAS) 1.653 1.083Pict-1212.9 --- - -106R 115-mirzyk
217712020 03 22.058931.59791C/2019 Y4 (ATLAS) 1.652 1.083Pict-1214.6 --- - -400L 0.45.8A77fkugel
217662020 03 21.058930.5C/2019 Y4 (ATLAS) 1.670 1.087-Spec-- --- - -280T ---ebertrand
217632020 03 19.758929.28791C/2019 Y4 (ATLAS) 1.704 1.097Pict--13.6 --- - -200T -5.1G20ydegotlonghi
217592020 03 18.858928.38402C/2019 Y4 (ATLAS) 1.721 1.102Pict--- --- - -180L ---dlamirel
217572020 03 18.858928.31818C/2019 Y4 (ATLAS) 1.721 1.102Pict--13.6 --- - -300- -6.7XXXmrives
217532020 03 18.758928.28926C/2019 Y4 (ATLAS) 1.721 1.102Pict--13.7 --- - -200T -5.1G20ydegotlonghi
217462020 03 17.858927.31573C/2019 Y4 (ATLAS) 1.738 1.107Pict-11.814.7 --- - -400L 0.45.8A77fkugel
218012020 03 15.858925.38C/2019 Y4 (ATLAS)----09.3- 8.04- - -407L ---nbiver
217432020 03 15.858925.33125C/2019 Y4 (ATLAS) 1.772 1.118Pict-09.513.6 95- - -407L 5.06-nbiver
217402020 03 15.858925.32708C/2019 Y4 (ATLAS) 1.772 1.118Pict-1214.7 --- - -400L 0.45.8A77fkugel
217352020 03 14.958924.41736C/2019 Y4 (ATLAS) 1.789 1.124Pict--13.4 --- - -120R -7XXXjpdesgrees
217322020 03 14.758924.28689C/2019 Y4 (ATLAS) 1.789 1.124Pict--13.4 --- - -200T -5.1G20ydegotlonghi
217242020 03 13.958923.40455C/2019 Y4 (ATLAS) 1.806 1.131Pict-11.312.8 13-0.25 250 -200L 0.828.2L27jfsoulier
217262020 03 13.858923.35626C/2019 Y4 (ATLAS) 1.806 1.131Pict-11.914.5 15-0.3 - -400L 0.45.8A77fkugel
217192020 03 13.258922.70347C/2019 Y4 (ATLAS) 1.806 1.131Pict--13.5 --- - -120R -7XXXjpdesgrees
217182020 03 12.958922.40625C/2019 Y4 (ATLAS) 1.823 1.137Pict-10.012.9 74- - -407L 3.510-nbiver
218002020 03 12.958922.4C/2019 Y4 (ATLAS)----09.6- 7.04- - -407L ---nbiver
217122020 03 11.858921.34595C/2019 Y4 (ATLAS) 1.839 1.144Pict-12.514.7 10-- - -400L 0.45.8A77fkugel
216972020 03 06.958916.44236C/2019 Y4 (ATLAS) 1.922 1.181Pict--14.5 --- - -120R -7XXXjpdesgrees
217222020 03 03.858913.35416C/2019 Y4 (ATLAS) 1.970 1.207-Spec-- --- - -280T ---ebertrand
216822020 03 01.858911.33339C/2019 Y4 (ATLAS) 2.003 1.226Pict--14.9 --- - -200T -5.1G20ydegotlonghi
216802020 02 29.158909.65159C/2019 Y4 (ATLAS) 2.019 1.236Pict-1416 12-- 190 -400L 0.45.8A77fkugel
216782020 02 27.158907.68095C/2019 Y4 (ATLAS) 2.051 1.257Pict-1416.2 --- - -400L 0.45.8A77fkugel
216762020 02 25.858906.36804C/2019 Y4 (ATLAS) 2.082 1.279Pict--15.3 --- - -200T -5.1G20ydegotlonghi
216722020 02 24.858905.31885C/2019 Y4 (ATLAS) 2.098 1.290Pict--14.8 --- - -300- -6.7178jgbosch
216652020 02 24.158904.68856C/2019 Y4 (ATLAS) 2.098 1.290---16.4 --- - -400L -5.8A77fkugel
216692020 02 23.858904.39056C/2019 Y4 (ATLAS) 2.114 1.302Pict--15.7 --- - -200T -5.1G20ydegotlonghi
216712020 02 23.458903.97099C/2019 Y4 (ATLAS) 2.114 1.302Pict--15.3 --- - -100R -6.7XXXjbdevanssay
217992020 02 22.958903.46C/2019 Y4 (ATLAS)----13.1- 2.02- - -407L ---nbiver
216522020 02 22.258902.70041C/2019 Y4 (ATLAS) 2.129 1.314Pict-14.416.4 6-- - -400L 0.45.8A77fkugel
217982020 02 22.058902.53C/2019 Y4 (ATLAS)----13.7- 1.33- - -407L ---nbiver
216482020 02 21.958902.47744C/2019 Y4 (ATLAS) 2.145 1.327Pict-1415.3 --- - -250L 0.747.4C10jfsoulier
216812020 02 21.958902.43194C/2019 Y4 (ATLAS) 2.145 1.327Pict-13.415.8 3.54- - -407L 1.86-nbiver
216422020 02 20.858901.34873C/2019 Y4 (ATLAS) 2.161 1.340Pict--15.5 --- - -300- -6.7178jgbosch
216322020 02 20.058900.54891C/2019 Y4 (ATLAS) 2.161 1.340Pict-14.415.5 2.18-- - -200L 0.588.2L27jfsoulier
216342020 02 19.958900.4234C/2019 Y4 (ATLAS) 2.176 1.353Pict--16.1 --- - -200T -5.1G20ydegotlonghi
216222020 02 18.858899.37135C/2019 Y4 (ATLAS) 2.192 1.366Pict--15.4 --- - -300T -6.7178jgbosch
216182020 02 18.858899.34907C/2019 Y4 (ATLAS) 2.192 1.366Pict-14.115.9 5-- - -400L 0.45.8A77fkugel
216062020 02 14.858895.39177C/2019 Y4 (ATLAS)--Pict--16.5 --- - -200T -5.1G20ydegotlonghi
215572020 02 02.158882.61053C/2019 Y4 (ATLAS) 2.431 1.626Pict--17.5 --- - -400L -5.8A77fkugel
215092020 01 18.958868.49281C/2019 Y4 (ATLAS) 2.647 1.938Pict--18.3 --- - -200T -5.1G20ydegotlonghi
214842020 01 08.258857.71206C/2019 Y4 (ATLAS)--Pict--19.1 --- - -400L -5.8A77fkugel
214912020 01 01.158850.69469C/2019 Y4 (ATLAS) 2.884 2.350Pict--18.7 --- - -200L -6.6L27jfsoulier
214902020 01 01.058850.56957C/2019 Y4 (ATLAS) 2.884 2.350Pict--18.8 --- - -300L -6.5C10jfsoulier

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