C/2025 F2 ( SWAN )

Japanese version Home page

Updated on May 3, 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 1.16161 TT Payne q 0.3334944 (2000.0) P Q z -0.0003269 Peri. 153.83737 -0.77745802 -0.37836253 +/-0.0000260 Node 329.84074 +0.23610992 +0.56479172 e 1.0001090 Incl. 90.36487 +0.58293322 -0.73338401 From 512 observations 2024 Sept. 3-2025 Apr. 21, mean residual 2".1.

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-J08. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.