C/2025 Q3 ( ATLAS )

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Updated on November 6, 2025

Profile Discovery Date August 20, 2025 Magnitude 19.5 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2026 Feb. 25.63867 TT Pike q 2.1125749 (2000.0) P Q z +0.0013272 Peri. 218.45254 +0.47133179 -0.37096685 +/-0.0000636 Node 233.14423 +0.82116181 -0.14641446 e 0.9971962 Incl. 90.18563 -0.32177574 -0.91703130 From 414 observations 2025 Aug. 20-Oct. 15, mean residual 0".4.

Finding Charts

Magnitudes Graph m1 = 12.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-T165. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.