C/2021 A1 (Leonard) (Record n° 24597)
Perihelion distance : 0.61 AU
Inclination to ecliptic : 133 °
Eccentricity : 1
NASA/JPL elements
IAU/MPC elements
On 2021 Dec 14 16h56 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Coma Total magnitude (m1) 5.7 Aperture radius for m1 0.74 ' Magnitude (MPC m2) 6.8 Aperture radius for m2 6 " Coma diameter 5 ' Tail position angle
(PA) 45 ° r (dist/Sun) 0.755 AU d (dist/Earth) 0.241 AU Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 890 mm Filter None Camera ATIK 414-EX- Sensor CCD Sensor temperature -15 °C Binning 1x1 Mount PARAMOUNT-ME- Autoguide No Exposure details 0.5s Power magnification 0.5 X Air mass 9.7 Observatory MPC code L27 Location Dauban (04) Reference stars catalog (ast) UCAC-4 Used softwares PRISM Resulting picture sampling (scale) 1.49 "/pix Remarks or comments Hauteur 5°
1 étoile de Ref. (mag. 7.97) Observation submission date 2021 Dec 14 20h08m39s