C/2025 A3 ( Tsuchinshan )

Japanese version Home page

Updated on March 11, 2025

Profile Discovery Date January 5, 2025 Magnitude 19.6 mag Discoverer China Near Earth Object Survey Telescope (CNEOST) search program, Xuyi Observatory of Purple Mountain Observatory (Tsuchinshan) Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2026 Mar. 11.45780 TT Pike q 5.7979869 (2000.0) P Q n 0.03032698 Peri. 221.98010 -0.99087440 +0.08375769 a 10.1839578 Node 322.43071 -0.01712648 -0.85537818 e 0.4306745 Incl. 9.97414 -0.13369596 -0.51118766 P 32.5 From 45 observations 2024 Dec. 25-2025 Feb. 23, mean residual 0".5.

Magnitudes Graph m1 = 8.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-D254. The magnitudes graphs are made with Comet for Windows.