C/2026 M3 ( MASTER )

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Updated on August 9, 2026

Profile Discovery Date June 19, 2026 Magnitude 20.3 mag Discoverer Mobile Astronomical System of the Telescope-Robots (MASTER) auto-detection system (Guillermo Haro Astrophysics Observatory at Cananea, Sonora, Mexico) Pictures

Orbital Elements Epoch 2026 June 9.0 TT = JDT 2461200.5 T 2026 Dec. 25.21204 TT Pike q 12.0886328 (2000.0) P Q z -0.0008324 Peri. 49.41586 +0.08862767 -0.20913281 +/-0.0010631 Node 282.50262 -0.89469069 +0.41302370 e 1.0100622 Incl. 94.03786 +0.43780555 +0.88638304 From 177 observations 2026 June 19-July 15, mean residual 0".5.

Magnitudes Graph m1 = 2.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2026-N90. The magnitudes graphs are made with Comet for Windows.