3I/ATLAS
Chart COBS
Credit: COBS Comet Observation Database – CC BY-NA-SA 4.0”
Mag15.57
Coma diameter0.24
Date Brightness Size Notes
2025-07-02 23:31 18.3 0.2 T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD
2025-07-02 23:31 17.4 0.2 M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD
2025-07-02 06:43 17.7 0.4 M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD
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