C/2025 K2 ( PanSTARRS )

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Updated on August 11, 2025

Profile Discovery Date May 29, 2025 Magnitude 20.4 mag Discoverer Pan-STARRS 1 telescope (Haleakala) Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2025 Oct. 25.33001 TT Pike q 2.8636108 (2000.0) P Q n 0.00771830 Peri. 232.46820 -0.04868312 -0.54683226 a 25.3583785 Node 113.82776 -0.34251508 +0.79521647 e 0.8870744 Incl. 113.97735 -0.93825016 -0.26192602 P 128 From 24 observations 2025 May 29-July 18, mean residual 0".3.

Magnitudes Graph m1 = 12.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-O159. The magnitudes graphs are made with Comet for Windows.