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3I/ATLAS


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 m10.2 '
Nuclear magnitude (m2)16
Aperture radius used for m26.8 "
Coma diameter0.25 '
r (dist/Sun) 2.822 AU
d (dist/Earth) 2.616 AU
Right ascension15 52 25.78 h m s
Declination-15 30 7,85 ° ' "
InstrumentSW ED120
Instrument typeRefractor
Instrument aperture (0=naked eye)120 mm
Instrument focale length765 mm
Instrument focale/diameter6.37
Filter(s)None
CameraATIK 314L+
SensorCCD
Sensor temperature-10 °C
Binning1x1
MountSphinx
MotorizationYes
AutoguideNo
Exposure details43x20s
Moon phase180 °
Air mass3.8
LocationYonne (89)
Used softwaresIRIS
Resulting picture sampling (scale)1.7 "/pix
Image processingIRIS
Remarks or commentsPhotométrie sur bande G de Gaia. Etoile de référence 6262640252668277000 (DR3) Astrométrie : écart de -2 arcsec en delta / MPC
Observation submission date2025 Aug 23 17h27m30s
Observation modification date2025 Aug 26 22h45m21s

(Record n° 29948)

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