C/2023 H1 ( PanSTARRS )

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Updated on December 22, 2025

Profile Discovery Date April 17, 2023 Magnitude 20.8 mag Discoverer Pan-STARRS 2 telescope (Haleakala) Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2024 Nov. 28.55280 TT Pike q 4.4472364 (2000.0) P Q z +0.0013425 Peri. 333.73816 -0.03388999 +0.93891194 +/-0.0000016 Node 292.64698 -0.83917907 -0.21284705 e 0.9940297 Incl. 21.78338 -0.54279827 +0.27044500 From 733 observations 2023 Apr. 17-2025 Nov. 15, mean residual 0".4.

Magnitudes Graph m1 = 3.0 + 5 log d + 16.0 log r(t - 100)

The orbital elements are published on M.P.E.C. 2025-Y51. The magnitudes graphs are made with Comet for Windows.