C/2025 X1 ( PanSTARRS )

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Updated on March 23, 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. 10.78295 TT Pike q 4.6692873 (2000.0) P Q n 0.00498695 Peri. 85.61485 -0.80038475 +0.03720331 a 33.9296706 Node 95.64084 -0.24049894 -0.93416259 e 0.8623834 Incl. 36.95895 +0.54913069 -0.35490305 P 198 From 133 observations 2025 Dec. 11-2026 Mar. 8, 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-E127. The magnitudes graphs are made with Comet for Windows.