C/2025 A6 ( Lemmon )

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Updated on September 4, 2026

Profile Discovery Date January 3, 2025 Magnitude 21.6 mag Discoverer D. C. Fuls (Mt. Lemmon survey) Pictures

Orbital Elements Epoch 2026 June 9.0 TT = JDT 2461200.5 T 2025 Nov. 8.53551 TT Pike q 0.5298373 (2000.0) P Q z +0.0082127 Peri. 132.95903 +0.77206688 -0.29445901 +/-0.0000006 Node 108.09824 -0.59877228 -0.63407393 e 0.9956486 Incl. 143.66353 +0.21303635 -0.71501339 From 1982 observations 2024 Nov. 12-2026 Aug. 3, mean residual 1".1.

Finding Charts

Magnitudes Graph m1 = 8.5 + 5 log d + 15.0 log r [ ,-85] ( - 2025 Aug. 15) m1 = 7.0 + 5 log d + 10.0 log r [-85, 0] (2025 Aug. 15 - 2025 Nov. 8) m1 = 5.0 + 5 log d + 2.5 log r [ 0, 52] (2025 Nov. 8 - 2025 Dec. 30) m1 = 3.5 + 5 log d + 20.0 log r [ 52, ] (2025 Dec. 30 - )

The orbital elements are published on M.P.E.C. 2026-P55. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.