C/2025 K1 ( ATLAS )

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Updated on October 1, 2025

Profile Discovery Date May 24, 2025 Magnitude 18.6 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Oct. 8.43942 TT Alexandersen q 0.3341852 (2000.0) P Q z -0.0007756 Peri. 271.02739 -0.84165666 -0.11645592 +/-0.0000093 Node 97.55792 +0.12569259 +0.90740352 e 1.0002592 Incl. 147.86421 -0.52518134 +0.40380301 From 2065 observations 2025 Apr. 8-Sept. 12, mean residual 0".6.

Finding Charts

Magnitudes Graph m1 = 11.7 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-S35. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.