C/2025 W1 ( Sankovich )

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Updated on January 31, 2026

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

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Feb. 17.73261 TT Pike q 4.1701162 (2000.0) P Q z +0.0000655 Peri. 250.63384 +0.20021360 -0.03842301 +/-0.0007727 Node 95.89125 +0.08243824 +0.99634789 e 0.9997270 Incl. 79.80032 -0.97627786 +0.07625325 From 80 observations 2025 Nov. 20-Dec. 7, 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-Y51. The magnitudes graphs are made with Comet for Windows.