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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Nov 21 04h10 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Coma Total magnitude (m1)10.3
Nuclear magnitude (m2)12.9
m2 standard deviation0.1
Aperture radius used for m25.8 "
r (dist/Sun) 1.082 AU
d (dist/Earth) 0.881 AU
Right ascension12 30 35.53 h m s
Declination+32 59 11.9 ° ' "
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 2021.11.21 10:33:29
AC2 JGBosch@free.fr
NET UCAC-4
    CK21A010  C2021 11 21.17328 12 30 35.53 +32 59 11.9          12.9 R      A77
    CK21A010  C2021 11 21.17901 12 30 36.60 +32 59 08.9          13.0 R      A77
    CK21A010  C2021 11 21.18539 12 30 37.83 +32 59 05.7          12.8 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
Sensor temperature-10 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details20x45s
Observatory MPC codeA77
LocationDauban A77
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 Nov 21 10h39m18s
Observation modification date2021 Nov 21 10h43m50s

(Record n° 24417)

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