C/2025 X1 ( PanSTARRS )

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Updated on July 12, 2026

Profile Discovery Date December 12, 2025 Magnitude 21.0 mag Discoverer Pan-STARRS 1 telescope (Haleakala) Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2026 Dec. 10.74874 TT Pike q 4.6694340 (2000.0) P Q n 0.00499007 Peri. 85.60961 -0.80039228 +0.03711884 a 33.9154950 Node 95.64022 -0.24040361 -0.93418484 e 0.8623215 Incl. 36.95855 +0.54916145 -0.35485333 P 198 From 183 observations 2025 Dec. 11-2026 May 24, mean residual 0".5.

Magnitudes Graph m1 = 9.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2026-K118. The magnitudes graphs are made with Comet for Windows.