C/2025 D1 ( Groeller )

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Updated on August 10, 2025

Profile Discovery Date February 20, 2025 Magnitude 20.6 mag Discoverer Hannes Groeller (Bok reflector at Kitt Peak) Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2028 May 19.88723 TT Pike q 14.1191863 (2000.0) P Q z -0.0002089 Peri. 185.88793 -0.68434699 -0.00043986 +/-0.0000014 Node 312.89771 +0.70301150 +0.26498337 e 1.0029493 Incl. 84.46652 +0.19350460 -0.96425288 From 68 observations 2018 June 6-2025 May 2, mean residual 0".8.

Magnitudes Graph m1 = 2.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-M120. The magnitudes graphs are made with Comet for Windows.