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3I/ATLAS


NASA/JPL elements
IAU/MPC elements


On 2025 Sep 24 23h45 UT by Patrick Ditz


(Copyright Patrick Ditz)

Coma Total magnitude (m1)10.3
Aperture radius used for m10.43 '
Nuclear magnitude (m2)13.2
m2 standard deviation0.1
Aperture radius used for m25.5 "
Coma diameter2 '
r (dist/Sun) 1.874 AU
d (dist/Earth) 2.522 AU
Right ascension14 37 15.86 h m s
Declination-11 37 53.0 ° ' "
MPC report
COD W96
CON P.Ditz
OBS P. Ditz
MEA P. Ditz
TEL 0.43-m f/6.8 reflector + CMO
NUM 3
ACK MPCReport CodW96-PDI #0003I obs2025-09-24 (L_29x40s_bin3) file updated 2025.09.25
NET ATLAS2
AC2 patrick.ditz@wanadoo.fr
0003I        KB2025 09 24.98984 14 37 15.86 -11 37 53.0          13.2 V      W96
0003I        KB2025 09 24.99545 14 37 15.19 -11 37 50.4          13.2 V      W96
0003I        KB2025 09 25.00054 14 37 14.59 -11 37 48.3          13.1 V      W96
Instrumental configurationConfig1
InstrumentPlaneWave CDK17
Instrument typeCassegrain
Instrument aperture (0=naked eye)430 mm
Instrument focale length2924 mm
Instrument focale/diameter6.8
Filter(s)L
CameraQHY 268M
SensorCMOS
Sensor size23.5x15.7 mm2
Sensor pixels number6252x4176
Sensor temperature-10 °C
Binning3x3
MountAstelco NTM500
Exposure total time1160 s
Exposure details29x40s
Moon phase164 °
Moon elongation8 °
Air mass3.1
Observatory MPC codeW96
LocationSpaceObs Chili
Reference stars catalogATLAS2
Used softwaresTycho Tracker
Image resize factor1
Resulting picture sampling (scale)0.79 "/pix
Image processingPrism11 & Gimp
Remarks or commentsObjet difficile car bas sur l'horizon et une Lune à 8°
Observation submission date2025 Sep 25 13h33m11s
Observation modification date2025 Sep 25 13h42m54s

(Record n° 30070)

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