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C/2021 A1 (Leonard)


NASA/JPL elements
IAU/MPC elements


On 2021 Nov 30 04h34 UT by Patrice Le Guen


(Copyright Patrice Le Guen)

Coma Total magnitude (m1)9.6
Aperture radius used for m10.5 '
Nuclear magnitude (m2)11.6
Aperture radius used for m25.84 "
Coma condensation degree (DC)1
Tail length1 °
Tail position angle (PA)107.94 °
r (dist/Sun) 0.946 AU
d (dist/Earth) 0.558 AU
Right ascension13 14 48.28 h m s
Declination+30 25 40.3 ° ' "
Instrumental configurationConfig1
InstrumentFSQ106ED
Instrument typeRefractor
Instrument aperture (0=naked eye)106 mm
Instrument focale length530 mm
Instrument focale/diameter5
Filter(s)L
CameraZWO ASI6200MM-PRO
SensorCMOS
Sensor size24x36mm mm2
Sensor pixels number9576x6388
Sensor temperature-20 °C
Binning1x1
MountEM200
MotorizationYes
AutoguideNo
Exposure total time3180 s
Exposure details53x60s
Sky transparency (naked eye max mag)5
Seeing3
Moon phase41 °
Moon elongation32 °
Air mass1.45
Observatory MPC codeXXX
LocationTOULON, FR
Reference stars catalogGaia DR1
Image resize factor0.3
Resulting picture sampling (scale)1.46 "/pix
Image processingPRISM V11
Remarks or commentsLogiciel utilisé pour les mesures : TYCHO 8.6 Catalogue utilisé pour la photométrie et l'astrométrie : Gaia DR3
Observation submission date2021 Nov 30 23h06m15s
Observation modification date2021 Nov 30 23h13m50s

(Record n° 24478)

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