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3I/ATLAS


NASA/JPL elements
IAU/MPC elements


On 2025 Sep 18 18h40 UT by Francois Kugel


(Copyright Francois Kugel)

Coma Total magnitude (m1)12.8
Nuclear magnitude (m2)14.6
m2 standard deviation0.5
Aperture radius used for m25.8 "
Coma diameter1 '
Tail length0.005 °
Tail position angle (PA)92 °
Afrho896 cm
r (dist/Sun) 2.029 AU
d (dist/Earth) 2.536 AU
Right ascension14 49 52.52 h m s
Declination-12 22 45.4 ° ' "
MPC report
COD A77
CON F. Kugel
OBS F. Kugel
MEA F. Kugel
TEL 0.40-m f/2.8 reflector + CCD
NUM 45
ACK MPCReport file updated 2025.09.19 08:41:21
NET APASS
AC2 fkugel@free.fr
0003I        KC2025 09 18.77791 14 49 52.52 -12 22 45.4          15.2 R      A77
0003I        KC2025 09 18.78262 14 49 51.89 -12 22 43.8          14.5 R      A77
0003I        KC2025 09 18.78731 14 49 51.24 -12 22 43.9          14.1 R      A77
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
Filter(s)None
CameraAtik460ex
SensorCCD
Sensor temperature-13 °C
Binning1x1
MountMeade MCMT-TDM
Exposure details45x20s
Observatory MPC codeA77
Reference stars catalogAPASS
Resulting picture sampling (scale)0.83 "/pix
Remarks or comments2025N1 2025 09 18.78 sk 12.8 AR 40.0L 3a900 1.0 0.3m 92 ICQ XX KUG I C 0.99mAT6 IC6 TYT 0 U9*0.20 14.4 0.8s 0.8 Comment: Comet Alt. 10.0
Observation submission date2025 Sep 19 08h42m31s
Observation modification date2025 Sep 19 09h20m27s

(Record n° 30048)

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