C/2021 A1 (Leonard) (Record n° 24412)
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 20 04h58 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 10.1 Aperture radius used for m1 0.4 ' Nuclear magnitude (m2) 12.8 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " Afrho 778 cm r (dist/Sun) 1.098 AU d (dist/Earth) 0.917 AU Right ascension 12 27 36.09 h m s Declination +33 07 35.2 ° ' " 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 2021.11.20 07:22:57
AC2 fkugel@free.fr
NET USNO-B1.0
CK21A010 C2021 11 20.20660 12 27 36.09 +33 07 35.2 10.1 T A77
CK21A010 C2021 11 20.21714 12 27 38.01 +33 07 29.7 12.7 I A77
CK21A010 C2021 11 20.22687 12 27 39.71 +33 07 24.9 12.8 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 -20 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 25x60s Observatory MPC code A77 Reference stars catalog USNO-B1.0
Image resize factor 0.364 Resulting picture sampling (scale) 0.83 "/pix Remarks or comments Afrho (2500km) Observation submission date 2021 Nov 20 07h28m18s Observation modification date 2021 Nov 21 06h40m35s