C/2025 W1 ( Sankovich )

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Updated on December 5, 2025

Profile Discovery Date November 20, 2025 Magnitude 19.8 mag Discoverer Anatoly Vasilyevich Sankovich (Moscow, Santel Observatory, El Leoncito, Argentina)

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Feb. 18.00391 TT Pike q 4.1727857 (2000.0) P Q z +0.0000977 Peri. 250.70393 +0.19991001 -0.03839695 +/-0.0020450 Node 95.87164 +0.08359079 +0.99625721 e 0.9995924 Incl. 79.80961 -0.97624206 +0.07744185 From 72 observations 2025 Nov. 20-Dec. 1, mean residual 0".4.

Magnitudes Graph m1 = 9.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-X33. The magnitudes graphs are made with Comet for Windows.