C/2025 R2 ( SWAN )

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Updated on December 22, 2025

Profile Discovery Date September 10, 2025 Magnitude 8.5 mag Discoverer Vladimir Bezugly (Dnipro, Ukraine) Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Sept. 12.84358 TT Pike q 0.5040920 (2000.0) P Q z +0.0117218 Peri. 308.35429 +0.23755680 +0.97082807 +/-0.0000166 Node 335.32930 -0.86512315 +0.19621429 e 0.9940911 Incl. 4.47287 -0.44173375 +0.13781443 From 2037 observations 2025 Aug. 13-Dec. 17, mean residual 0".7.

Finding Charts

Magnitudes Graph m1 = 10.0 + 5 log d + 10.0 log r(t - 12)

The orbital elements are published on M.P.E.C. 2025-Y51. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.