C/2021 A1 (Leonard) (Record n° 24418)
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 22 03h11 UT by Francois Kugel
(Copyright Francois Kugel)Coma Total magnitude (m1) 9.8 Aperture radius used for m1 0.4 ' Nuclear magnitude (m2) 12.6 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " Afrho 571 cm Afrho error 6 cm r (dist/Sun) 1.067 AU d (dist/Earth) 0.846 AU Right ascension 12 33 46.75 h m s Declination +32 50 03.6 ° ' " 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 2021.11.22 07:25:45
AC2 fkugel@free.fr
NET USNO-B1.0
CK21A010 C2021 11 22.13247 12 33 46.75 +32 50 03.6 12.7 V A77
CK21A010 C2021 11 22.18590 12 33 57.68 +32 49 32.8 12.6 V A77
CK21A010 C2021 11 22.21413 12 34 03.50 +32 49 16.1 12.6 V A77
CK21A010 C2021 11 22.22216 12 34 05.09 +32 49 11.8 9.8 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 -20 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 3x30s Observatory MPC code A77 Reference stars catalog USNO-B1.0
Image resize factor 0.5 Resulting picture sampling (scale) 0.83 "/pix Remarks or comments Afrho (10000km) Observation submission date 2021 Nov 22 07h38m44s Observation modification date 2021 Nov 22 08h54m16s