C/2025 X1 ( PanSTARRS )

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Updated on January 24, 2026

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

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2026 Dec. 10.87539 TT Alexandersen q 4.6686563 (2000.0) P Q n 0.00498363 Peri. 85.63376 -0.80038697 +0.03742915 a 33.9447110 Node 95.63871 -0.24077350 -0.93408396 e 0.8624629 Incl. 36.95756 +0.54900712 -0.35508622 P 198 From 95 observations 2025 Dec. 11-2026 Jan. 10, mean residual 0".5.

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

The orbital elements are published on M.P.E.C. 2026-A90. The magnitudes graphs are made with Comet for Windows.