C/2021 A1 (Leonard) (Record n° 24478)
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 m1 0.5 ' Nuclear magnitude (m2) 11.6 Aperture radius used for m2 5.84 " Coma condensation degree
(DC) 1 Tail length 1 ° Tail position angle
(PA) 107.94 ° r (dist/Sun) 0.946 AU d (dist/Earth) 0.558 AU Right ascension 13 14 48.28 h m s Declination +30 25 40.3 ° ' " Instrumental configuration Config1 Instrument FSQ106ED Instrument type Refractor Instrument aperture (0=naked eye) 106 mm Instrument focale length 530 mm Instrument focale/diameter 5 Filter(s) L Camera ZWO ASI6200MM-PRO Sensor CMOS Sensor size 24x36mm mm2 Sensor pixels number 9576x6388 Sensor temperature -20 °C Binning 1x1 Mount EM200 Motorization Yes Autoguide No Exposure total time 3180 s Exposure details 53x60s Sky transparency (naked eye max mag) 5 Seeing 3 Moon phase 41 ° Moon elongation 32 ° Air mass 1.45 Observatory MPC code XXX Location TOULON, FR Reference stars catalog Gaia DR1 Image resize factor 0.3 Resulting picture sampling (scale) 1.46 "/pix Image processing PRISM V11 Remarks or comments Logiciel utilisé pour les mesures : TYCHO 8.6
Catalogue utilisé pour la photométrie et l'astrométrie : Gaia DR3 Observation submission date 2021 Nov 30 23h06m15s Observation modification date 2021 Nov 30 23h13m50s