C/2019 L3 (ATLAS) (Record n° 23992)
Perihelion distance : 3.56 AU
Inclination to ecliptic : 48 °
Eccentricity : 1
NASA/JPL elements
IAU/MPC elements
On 2021 Sep 17 02h37 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 11.3 Aperture radius for m1 1.1 ' Magnitude (MPC m2) 13.4 Aperture radius for m2 6 " Coma diameter 1.8 ' Coma condensation degree
(DC) 6 Tail length 0.06 ° Tail position angle
(PA) 300 ° r (dist/Sun) 3.704 AU d (dist/Earth) 3.908 AU Right ascension 109.08333 ° Declination +44.24444 ° Instrumental configuration Config1 Instrument Dobson 407mm F/D 4.3 Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1750 mm Camera SONY alpha7S Sensor DC Sensor size 36*24 mm2 Sensor pixels number 4240*2832 Sensor temperature 12 °C Binning 2x2 Mount dobson sur table equatoriale JMI Motorization Yes Autoguide No Exposure total time 80 s Exposure details 40*2.0s Sky transparency (naked eye max mag) 6 Seeing 3 Moon phase 49 ° Moon elongation 154 ° Air mass 1.5 Location Boulonville Reference stars catalog (ast) APASS Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing binning, flat, alignement stellaire, somme, retrait gradient Remarks or comments couche verte: m1=13.4, Dia.=2' Observation submission date 2021 Sep 21 23h00m45s