3I/ATLAS (Record n° 29943)
NASA/JPL elements
IAU/MPC elements
On 2025 Aug 21 20h49 UT by Nicolas Delaunoy
(Copyright Nicolas Delaunoy)Nuclear magnitude (m2) 16.2 Aperture radius used for m2 6.1 " r (dist/Sun) 2.853 AU d (dist/Earth) 2.622 AU Right ascension 15 55 01.03 h m s Declination -15 36 36.7 ° ' " 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) None 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 1076 s Exposure details 269*4s Sky transparency (naked eye max mag) 3.5 Seeing 3 Moon phase 162 ° Moon elongation 108 ° Location Yerres, 91330, France Reference stars catalog UCAC-4 Used softwares Tycho tracker (master darks avec Siril) Resulting picture sampling (scale) 1.33 "/pix Remarks or comments Pas évidente cette comète pour moi, basse et avec la pollution lumineuse ambiante. Observation submission date 2025 Aug 22 19h39m41s