C/2025 R2 ( SWAN )

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Updated on September 19, 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. 12.69863 TT Alexandersen q 0.5037119 (2000.0) P Q z +0.0078959 Peri. 307.98178 +0.23490559 +0.97148229 +/-0.0035023 Node 335.54575 -0.86558273 +0.19396205 e 0.9960227 Incl. 4.47129 -0.44225094 +0.13638507 From 118 observations 2025 Aug. 13-Sept. 15, mean residual 0".5.

Finding Charts

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

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.