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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Dec 09 04h57 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Coma Total magnitude (m1)7.6
Aperture radius used for m10.4 '
Nuclear magnitude (m2)9.6
m2 standard deviation0.6
Aperture radius used for m25.8 "
r (dist/Sun) 0.818 AU
d (dist/Earth) 0.276 AU
Right ascension15 27 50.89 h m s
Declination+15 28 33.0 ° ' "
MPC report
COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.12.09 11:56:10
AC2 JGBosch@free.fr
NET NOMAD
    CK21A010  C2021 12 09.20613 15 27 50.89 +15 28 33.0           9.4 R      A77
    CK21A010  C2021 12 09.20673 15 27 51.82 +15 28 24.3          11.1 R      A77
    CK21A010  C2021 12 09.20749 15 27 52.98 +15 28 14.6           9.4 R      A77
    CK21A010  C2021 12 09.20839 15 27 54.37 +15 28 00.9           9.3 R      A77
    CK21A010  C2021 12 09.20884 15 27 55.10 +15 27 54.7           9.3 R      A77
    CK21A010  C2021 12 09.21140 15 27 59.02 +15 27 18.3           9.4 R      A77
    CK21A010  C2021 12 09.21345 15 28 02.14 +15 26 50.1           9.4 R      A77
InstrumentNEWTON 400
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)None
CameraAtik 460ex
SensorCCD
Binning1x1
MountMeade-MCMT-TDM
Exposure details7x2s
Observatory MPC codeA77
LocationDauban A77
Reference stars catalogNOMAD
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 Dec 09 11h58m23s
Observation modification date2021 Dec 09 12h04m47s

(Record n° 24546)

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