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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Dec 01 02h26 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)8.7
Aperture radius used for m10.4 '
Nuclear magnitude (m2)13
m2 standard deviation0.1
Aperture radius used for m25.8 "
Afrho504 cm
Afrho error5 cm
r (dist/Sun) 0.931 AU
d (dist/Earth) 0.522 AU
Right ascension13 22 05.67 h m s
Declination+29 53 52.6 ° ' "
MPC report
COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS F. Kugel
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 file updated 2021.12.01 08:38:48
AC2 fkugel@free.fr
NET NOMAD
    CK21A010  C2021 12 01.10158 13 22 05.67 +29 53 52.6          13.0 V      A77
    CK21A010  C2021 12 01.14986 13 22 30.23 +29 52 02.9          13.0 V      A77
    CK21A010  C2021 12 01.15682 13 22 33.80 +29 51 46.7          12.8 V      A77
    CK21A010  C2021 12 01.16469 13 22 37.77 +29 51 29.9          13.0 V      A77
    CK21A010  C2021 12 01.17210 13 22 41.55 +29 51 12.2           8.7 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 details9x30s
Observatory MPC codeA77
Reference stars catalogNOMAD
Image resize factor0.376
Resulting picture sampling (scale)0.83 "/pix
Image processingAfrho (Vu) 10000km
Observation submission date2021 Dec 01 08h43m06s
Observation modification date2021 Dec 01 12h02m06s

(Record n° 24479)

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