C/2022 E3 (ZTF) (Record n° 26825)
NASA/JPL elements
IAU/MPC elements
On 2023 Jan 31 05h03 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 5.2 Aperture radius used for m1 12 ' Nuclear magnitude (m2) 10.2 Aperture radius used for m2 6 " Coma diameter 23 ' Coma condensation degree
(DC) 5 Tail length 0.7 ° Tail position angle
(PA) 350 ° Afrho 1710 cm Afrho error 30 cm r (dist/Sun) 1.151 AU d (dist/Earth) 0.290 AU 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 Instrument focale/diameter 4.29 Filter(s) None Camera SONY alpha7S Sensor DC Sensor size 36*24 mm2 Sensor pixels number 4240*2832 Sensor temperature -3 °C Binning 2x2 Mount dobson sur table equatoriale JMI Motorization Yes Autoguide No Exposure total time 52.5 s Exposure details 21x2.5s Sky transparency (naked eye max mag) 6 Seeing 3 Moon phase 60 ° Moon elongation 180 ° Air mass 1.25 Location Boulonville Reference stars catalog APASS Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing Binning, flat, alignement, somme aligné comète, +-retrait gradient - image RAW Remarks or comments Afrho couche R (RAW) Observation submission date 2023 Feb 28 14h48m32s