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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Dec 01 02h43 UT by Francois Kugel

Coma Total magnitude (m1)8.4
Aperture radius used for m10.4 '
Nuclear magnitude (m2)12.6
m2 standard deviation0.0
Aperture radius used for m25.8 "
Afrho390 cm
Afrho error6 cm
r (dist/Sun) 0.931 AU
d (dist/Earth) 0.522 AU
Right ascension13 22 11.72 h m s
Declination+29 53 25.2 ° ' "
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 11:27:40
AC2 fkugel@free.fr
NET USNO-B1.0
    CK21A010  C2021 12 01.11340 13 22 11.72 +29 53 25.2          12.6 I      A77
    CK21A010  C2021 12 01.11433 13 22 12.13 +29 53 23.6          12.6 I      A77
    CK21A010  C2021 12 01.11526 13 22 12.61 +29 53 21.9           8.4 T      A77
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)IR pro
CameraAtik460ex
SensorCCD
Sensor temperature-25 °C
Binning1x1
MountMeade-MCMT-TDM
Observatory MPC codeA77
Reference stars catalogUSNO-B1.0
Resulting picture sampling (scale)0.83 "/pix
Remarks or commentsAfrho (10000km)
Observation submission date2021 Dec 01 11h31m20s
Observation modification date2021 Dec 01 11h57m36s

(Record n° 24482)

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