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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Nov 23 04h30 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)10.6
Aperture radius used for m10.4 '
Nuclear magnitude (m2)13.2
m2 standard deviation0.1
Aperture radius used for m25.8 "
Afrho596 cm
Afrho error6 cm
r (dist/Sun) 1.051 AU
d (dist/Earth) 0.810 AU
Right ascension12 37 33.99 h m s
Declination+32 38 54.8 ° ' "
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 2021.11.23 07:29:51
AC2 fkugel@free.fr
NET NOMAD
    CK21A010  C2021 11 23.18749 12 37 33.99 +32 38 54.8          13.2 V      A77
    CK21A010  C2021 11 23.19167 12 37 34.92 +32 38 52.4          13.2 V      A77
    CK21A010  C2021 11 23.19676 12 37 36.04 +32 38 48.8          13.2 V      A77
    CK21A010  C2021 11 23.20185 12 37 37.15 +32 38 45.8          13.3 V      A77
    CK21A010  C2021 11 23.20694 12 37 38.33 +32 38 42.4          10.6 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-20 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details43x30s
Observatory MPC codeA77
Reference stars catalogNOMAD
Image resize factor0.364
Resulting picture sampling (scale)0.83 "/pix
Remarks or commentsAfrho (5000km)
Observation submission date2021 Nov 23 08h06m32s
Observation modification date2021 Nov 23 08h08m45s

(Record n° 24422)

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