C/2021 A1 (Leonard) (Record n° 24469)
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 30 04h31 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Coma Total magnitude (m1) 7.3 Nuclear magnitude (m2) 11.4 m2 standard deviation 0.2 Aperture radius used for m2 5.8 " r (dist/Sun) 0.946 AU d (dist/Earth) 0.558 AU Right ascension 13 14 47.14 h m s Declination +30 25 44.2 ° ' " MPC report COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.11.30 13:56:59
AC2 JGBosch@free.fr
NET UCAC-4
CK21A010 C2021 11 30.18789 13 14 47.14 +30 25 44.2 11.5 R A77
CK21A010 C2021 11 30.19172 13 14 48.60 +30 25 39.4 11.2 R A77
CK21A010 C2021 11 30.19619 13 14 50.69 +30 25 30.6 11.6 R A77
Instrument NEWTON 400 Instrument type Newton Instrument aperture (0=naked eye) 400 mm Instrument focale length 1120 mm Instrument focale/diameter 2.8 Filter(s) None Camera Atik 460ex Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 2x45s Observatory MPC code A77 Location Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 Nov 30 14h03m26s Observation modification date 2021 Nov 30 14h15m15s