C/2025 A1 ( Lemmon )

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Updated on March 20, 2026

Profile Discovery Date January 2, 2025 Magnitude 20.5 mag Discoverer Mt. Lemmon survey Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2027 Mar. 13.29350 TT Pike q 5.3416069 (2000.0) P Q z -0.0004112 Peri. 68.13240 -0.83264535 -0.12247034 +/-0.0000018 Node 101.33069 -0.00789686 -0.97251668 e 1.0021966 Incl. 33.42405 +0.55375026 -0.19802101 From 329 observations 2021 Nov. 11-2026 Mar. 11, mean residual 0".4.

Magnitudes Graph m1 = 6.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2026-F30. The magnitudes graphs are made with Comet for Windows.