C/2021 A1 (Leonard) (Record n° 24488)
NASA/JPL elements
IAU/MPC elements
On 2021 Dec 02 05h07 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 9.5 Aperture radius used for m1 0.4 ' Nuclear magnitude (m2) 12.5 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " Afrho 456 cm Afrho error 7 cm r (dist/Sun) 0.917 AU d (dist/Earth) 0.487 AU Right ascension 13 32 11.14 h m s Declination +29 06 40.9 ° ' " MPC report COD A77
CON FRANCOIS KUGEL [fkugel@free.fr]
OBS F. Kugel
MEA F. Kugel
TEL 0.4-m f/2.8 reflector + CCD
ACK A77 file updated 2021.12.02 08:49:41
AC2 fkugel@free.fr
NET USNO-B1.0
CK21A010 C2021 12 02.21298 13 32 11.14 +29 06 40.9 12.5 I A77
CK21A010 C2021 12 02.21576 13 32 12.77 +29 06 33.1 9.5 T A77
CK21A010 C2021 12 02.22270 13 32 16.85 +29 06 13.0 12.4 I 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) IR pro Camera Atik460ex Sensor CCD Sensor temperature -25 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 355s Observatory MPC code A77 Reference stars catalog USNO-B1.0
Image resize factor 0.4 Resulting picture sampling (scale) 0.83 "/pix Remarks or comments Afrho (IR) 10000km Observation submission date 2021 Dec 02 10h08m20s Observation modification date 2021 Dec 02 20h43m29s