C/2025 B2 ( Borisov )

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Updated on May 2, 2025

Profile Discovery Date January 20, 2025 Magnitude 20.3 mag Discoverer Gennady Borisov (Nauchnij, Crimea) Pictures

Orbital Elements Perturbed ephemeris below is based on elements from MPEC 2025-GB9. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461280.50000 2461293.9386042 78.76110 84.88089 91.75440 e q a Epoch (TT) 1.0014764 8.2441642 2026/08/28.00

Magnitudes Graph m1 = 5.5 + 5 log d + 10.0 log r

The orbital elements are calculated using the Minor Planet & Comet Ephemeris Service. The magnitudes graphs are made with Comet for Windows.