C/2026 H2 ( Leonard )

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Updated on September 4, 2026

Profile Discovery Date April 16, 2026 Magnitude 19.6 mag Discoverer Gregory J. Leonard (Mt. Lemmon Survey) Pictures

Orbital Elements Epoch 2026 June 9.0 TT = JDT 2461200.5 T 2026 Mar. 17.32382 TT Alexandersen q 4.5465193 (2000.0) P Q z -0.0004744 Peri. 111.54923 -0.29009637 -0.95571761 +/-0.0000366 Node 5.45708 -0.94999708 +0.28134736 e 1.0021568 Incl. 148.65041 +0.11554070 -0.08629892 From 379 observations 2026 Apr. 15-July 26, mean residual 0".5.

Magnitudes Graph m1 = 9.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2026-O98. The magnitudes graphs are made with Comet for Windows.