C/2023 H1 ( PanSTARRS )

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Updated on July 28, 2026

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

Orbital Elements Epoch 2026 June 9.0 TT = JDT 2461200.5 T 2024 Nov. 28.47402 TT Pike q 4.4465405 (2000.0) P Q z +0.0013410 Peri. 333.72300 -0.03417005 +0.93890539 +/-0.0000013 Node 292.64529 -0.83912545 -0.21308717 e 0.9940371 Incl. 21.78243 -0.54286360 +0.27027861 From 736 observations 2023 Apr. 17-2026 June 23, 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. 2026-N12. The magnitudes graphs are made with Comet for Windows.