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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Dec 30 21h53 UT by Patrick Delay


(Copyright Patrick Delay)

Coma Total magnitude (m1)6.1
Aperture radius used for m11 '
Nuclear magnitude (m2)8.4
m2 standard deviation0.0
Aperture radius used for m26.5 "
r (dist/Sun) 0.622 AU
d (dist/Earth) 0.757 AU
Right ascension21 31 35.47 h m s
Declination-35 15 43.0 ° ' "
MPC report
COD X03
CON P. Delay [patrick78-50@orange.fr]
OBS P. Delay
MEA P. Delay
TEL 0.07-m f/4.9 Refractor + CCD
ACK MPCReport file updated 2022.01.13 14:21:09
AC2 patrick78-50@orange.fr
NET Gaia DR2
    CK21A010  C2021 12 30.91196 21 31 35.47 -35 15 43.0           8.4 G      X03
    CK21A010  C2021 12 30.91233 21 31 35.55 -35 15 43.5           8.3 G      X03
    CK21A010  C2021 12 30.91273 21 31 35.66 -35 15 43.6           8.4 G      X03
    CK21A010  C2021 12 30.91311 21 31 35.69 -35 15 43.8           8.4 G      X03
Instrumental configurationConfig2
Instrumentrefractor 71/348
Instrument typeRefractor
Instrument aperture (0=naked eye)71 mm
Instrument focale length348 mm
Instrument focale/diameter4.9
Filter(s)L
CameraQHY163
SensorCCD
Sensor size17.7x13.4 mm2
Sensor pixels number4656x3522
Sensor temperature-20 °C
Binning1x1
MountSW EQ8
MotorizationYes
AutoguideYes
Exposure details4x10s
Observatory MPC codeX03
LocationPoroto Chili
Reference stars catalogGaia DR2
Used softwaresASTROMETRICA
Resulting picture sampling (scale)2.25 "/pix
Remarks or commentsM1 calculé avec Focas
Observation submission date2022 Jan 13 14h33m47s
Observation modification date2022 Jan 13 14h38m01s

(Record n° 24803)

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