P/2025 W4 ( PanSTARRS )

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Updated on January 31, 2026

Profile Discovery Date November 23, 2025 Magnitude 20.6 mag Discoverer Pan-STARRS 1 telescope (Haleakala) Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Oct. 4.46507 TT Alexandersen q 2.0343597 (2000.0) P Q n 0.23798076 Peri. 172.27528 +0.65079437 -0.75901560 a 2.5789415 Node 237.12102 +0.69538503 +0.60592222 e 0.2111648 Incl. 1.29819 +0.30480544 +0.23823010 P 4.14 From 100 observations 2025 Sept. 5-2026 Jan. 9, mean residual 0".6.

Magnitudes Graph m1 = 13.5 + 5 log d + 20.0 log r

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