21P/Giacobini-Zinner
Chart COBS
Credit: COBS Comet Observation Database – CC BY-NA-SA 4.0”
Mag19.60
Coma diameter0.30
Date Brightness Size Notes
2024-09-30 18:43 19.6 0.3 J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD
2024-07-27 03:21 20.4 None J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD
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