C/2025 A6 ( Lemmon )

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Updated on September 19, 2025

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

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Nov. 8.53746 TT Alexandersen q 0.5298923 (2000.0) P Q z +0.0082250 Peri. 132.96951 +0.77201246 -0.29460572 +/-0.0000045 Node 108.09797 -0.59889013 -0.63396446 e 0.9956417 Incl. 143.66375 +0.21290227 -0.71505002 From 424 observations 2024 Nov. 12-2025 Sept. 16, mean residual 0".4.

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 = 8.5 + 5 log d + 15.0 log r [ 0, ] (2025 Nov. 8 - )

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.