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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Dec 06 04h01 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)9.5
Aperture radius used for m10.4 '
Nuclear magnitude (m2)12.7
m2 standard deviation0.1
Aperture radius used for m25.8 "
Coma diameter15 '
Afrho523 cm
Afrho error6 cm
r (dist/Sun) 0.859 AU
d (dist/Earth) 0.356 AU
Right ascension14 23 29.63 h m s
Declination+24 06 20.8 ° ' "
MPC report
COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS J.-G.Bosch
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 file updated 2021.12.06 07:51:53
AC2 fkugel@free.fr
NET NOMAD
    CK21A010  C2021 12 06.16730 14 23 29.63 +24 06 20.8          12.7 V      A77
    CK21A010  C2021 12 06.19302 14 23 55.81 +24 03 22.3          12.6 V      A77
    CK21A010  C2021 12 06.21879 14 24 22.11 +24 00 22.0          12.7 V      A77
    CK21A010  C2021 12 06.24078 14 24 44.53 +23 57 46.3           9.5 T      A77
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)None
CameraAtik460ex
SensorCCD
Sensor temperature-25 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details10x5s
Observatory MPC codeA77
Reference stars catalogNOMAD
Image resize factor0.5
Resulting picture sampling (scale)0.83 "/pix
Remarks or commentsAfrho (Vu)10000km
Observation submission date2021 Dec 06 07h55m07s
Observation modification date2021 Dec 06 08h24m15s

(Record n° 24514)

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