C/2021 G2 (ATLAS) (Record n° 29705)
NASA/JPL elements
IAU/MPC elements
On 2025 May 17 21h45 UT by Nicolas Delaunoy
(Copyright Nicolas Delaunoy)Nuclear magnitude (m2) 15.2 Aperture radius used for m2 6.0 " r (dist/Sun) 5.338 AU d (dist/Earth) 4.351 AU Right ascension 15 16 57.26 h m s Declination -05 35 25.3 ° ' " Instrumental configuration Config1 Instrument UNISTELLAR eQuinox2 Instrument type Newton Instrument aperture (0=naked eye) 115 mm Instrument focale length 450 mm Instrument focale/diameter 3.91 Filter(s) L Camera IMX347 Sensor CMOS Sensor size 7.1x5.3 mm2 Sensor pixels number 2088x1536 Binning 1x1 Mount ALT-AZ Motorization Yes Autoguide No Exposure total time 933 s Exposure details 235x3.97s Sky transparency (naked eye max mag) 3.5 Seeing 4 Moon phase 59 ° Moon elongation 69 ° Observatory MPC code XXX Location Yerres, 91330, France Reference stars catalog UCAC-4 Used softwares Tycho tracker (master darks avec Siril) Resulting picture sampling (scale) 1.33 "/pix Observation submission date 2025 May 18 18h49m15s