C/2025 R2 ( SWAN )

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Updated on January 31, 2026

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. 12.84569 TT Alexandersen q 0.5040942 (2000.0) P Q z +0.0115302 Peri. 308.35953 +0.23758757 +0.97082038 +/-0.0000116 Node 335.32587 -0.86511780 +0.19623972 e 0.9941877 Incl. 4.47294 -0.44172768 +0.13783239 From 2247 observations 2025 Aug. 13-2026 Jan. 11, mean residual 0".8.

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. 2026-A90. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.