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3I/ATLAS


NASA/JPL elements
IAU/MPC elements


On 2025 Aug 23 20h35 UT by Eric Tessier


(Copyright Eric Tessier)

Coma Total magnitude (m1)15.8
Aperture radius used for m10.2 '
Nuclear magnitude (m2)16.1
Aperture radius used for m26.8 "
Coma diameter0.2 '
r (dist/Sun) 2.791 AU
d (dist/Earth) 2.611 AU
Right ascension15 49 52.62 h m s
Declination-15 23 38.65 ° ' "
InstrumentSW ED120
Instrument aperture (0=naked eye)120 mm
Instrument focale length765 mm
Instrument focale/diameter6.37
CameraATIK 314L+
SensorCCD
Sensor temperature-10 °C
MountSphinx
MotorizationYes
AutoguideNo
Exposure details41x20s
Moon phase180 °
Air mass4
LocationYonne (89)
Used softwaresIRIS
Resulting picture sampling (scale)1.7 "/pix
Remarks or commentsPhotométrie bande G déduite de l'étoile GAIA (DR3) 6263404997365844000 Astrométrie décalée de -2 arcsec en delta par rapport à MPC
Observation submission date2025 Aug 26 22h23m10s
Observation modification date2025 Aug 26 23h04m42s

(Record n° 29975)

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