C/2025 F2 ( SWAN )

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Updated on April 21, 2025

Profile Discovery Date March 22, 2025 Magnitude 11.5 mag and 11 mag Discoverer Vladimir Bezugly, Michael Mattiazzo, Robert D. Matson (Solar Wind Anisotropies (SWAN) camera on the Solar and Heliospheric Observer (SOHO) spacecraft) Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2025 May 1.15921 TT Veres q 0.3334208 (2000.0) P Q z +0.0000784 Peri. 153.85020 -0.77759255 -0.37814441 +/-0.0000212 Node 329.84363 +0.23615769 +0.56480845 e 0.9999739 Incl. 90.37191 +0.58273439 -0.73348362 From 301 observations 2024 Sept. 3-2025 Apr. 8, mean residual 0".5.

Finding Charts

Magnitudes Graph m1 = 10.0 + 5 log d + 15.0 log r [ ,-25] ( - 2025 Apr. 6) m1 = 12.5 + 5 log d + 10.0 log r(t + 20) [-25, ] (2025 Apr. 6 - ) * Gray curve is: m1 = 10.0 + 5 log d + 15.0 log r

The orbital elements are published on M.P.E.C. 2025-G102. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.