3I/ATLAS (Record n° 29948)
NASA/JPL elements
IAU/MPC elements
On 2025 Aug 22 20h47 UT by Eric Tessier
(Copyright Eric Tessier)Coma Total magnitude (m1) 15.7 Aperture radius used for m1 0.2 ' Nuclear magnitude (m2) 16 Aperture radius used for m2 6.8 " Coma diameter 0.25 ' r (dist/Sun) 2.822 AU d (dist/Earth) 2.616 AU Right ascension 15 52 25.78 h m s Declination -15 30 7,85 ° ' " Instrument SW ED120 Instrument type Refractor Instrument aperture (0=naked eye) 120 mm Instrument focale length 765 mm Instrument focale/diameter 6.37 Filter(s) None Camera ATIK 314L+ Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Sphinx Motorization Yes Autoguide No Exposure details 43x20s Moon phase 180 ° Air mass 3.8 Location Yonne (89) Used softwares IRIS Resulting picture sampling (scale) 1.7 "/pix Image processing IRIS Remarks or comments Photométrie sur bande G de Gaia. Etoile de référence 6262640252668277000 (DR3)
Astrométrie : écart de -2 arcsec en delta / MPC Observation submission date 2025 Aug 23 17h27m30s Observation modification date 2025 Aug 26 22h45m21s