C/2026 H2 ( Leonard )

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Updated on May 9, 2026

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

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2026 Mar. 18.44261 TT Pike q 4.5481850 (2000.0) P Q z -0.0013424 Peri. 111.68303 -0.29270132 -0.95493568 +/-0.0009673 Node 5.43083 -0.94922603 +0.28397121 e 1.0061057 Incl. 148.65567 +0.11530773 -0.08636085 From 223 observations 2026 Apr. 15-May 6, mean residual 0".4.

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

The orbital elements are published on M.P.E.C. 2026-J15. The magnitudes graphs are made with Comet for Windows.