C/2021 A1 (Leonard) (Record n° 24514)
NASA/JPL elements
IAU/MPC elements
On 2021 Dec 06 04h01 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 9.5 Aperture radius used for m1 0.4 ' Nuclear magnitude (m2) 12.7 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " Coma diameter 15 ' Afrho 523 cm Afrho error 6 cm r (dist/Sun) 0.859 AU d (dist/Earth) 0.356 AU Right ascension 14 23 29.63 h m s Declination +24 06 20.8 ° ' " MPC report COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS J.-G.Bosch
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 file updated 2021.12.06 07:51:53
AC2 fkugel@free.fr
NET NOMAD
CK21A010 C2021 12 06.16730 14 23 29.63 +24 06 20.8 12.7 V A77
CK21A010 C2021 12 06.19302 14 23 55.81 +24 03 22.3 12.6 V A77
CK21A010 C2021 12 06.21879 14 24 22.11 +24 00 22.0 12.7 V A77
CK21A010 C2021 12 06.24078 14 24 44.53 +23 57 46.3 9.5 T A77
Instrumental configuration Config2 Instrument type Newton Instrument aperture (0=naked eye) 400 mm Instrument focale length 1120 mm Instrument focale/diameter 2.8 Filter(s) None Camera Atik460ex Sensor CCD Sensor temperature -25 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 10x5s Observatory MPC code A77 Reference stars catalog NOMAD
Image resize factor 0.5 Resulting picture sampling (scale) 0.83 "/pix Remarks or comments Afrho (Vu)10000km Observation submission date 2021 Dec 06 07h55m07s Observation modification date 2021 Dec 06 08h24m15s