C/2023 A3 (Tsuchinshan-ATLAS) (Record n° 28595)
NASA/JPL elements
IAU/MPC elements
On 2024 Jul 06 21h39 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 10.2 Aperture radius used for m1 1 ' Nuclear magnitude (m2) 12.5 Aperture radius used for m2 6 " Coma diameter 1.4 ' Coma condensation degree
(DC) 6 Tail length 0.15 ° Tail position angle
(PA) 110 ° r (dist/Sun) 1.796 AU d (dist/Earth) 1.996 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 12 °C Binning 2x2 Mount dobson sur table equatoriale JMI Motorization Yes Autoguide No Exposure total time 67.5 s Exposure details 45x1+45x0.5s Sky transparency (naked eye max mag) 4.5 Seeing 2 Moon phase 180 ° Moon elongation 90 ° Air mass 9.5 Location Boulonville Reference stars catalog APASS Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing binning, flat, alignement, somme, retrait gradient Remarks or comments Magnitudes sur format RAW (44.5s)
Ciel très crépusculaire Observation submission date 2024 Jul 08 00h31m12s