C/2021 U4 ( Leonard )

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Updated on March 4, 2025

Profile Discovery Date October 31, 2021 Magnitude 19.8 mag Discoverer G. J. Leonard (Mt. Lemmon)

Orbital Elements Perturbed ephemeris below is based on elements from MPEC 2025-AH4. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459560.50000 2459570.4753639 237.28962 241.79954 152.87557 e q a Epoch (TT) 0.9593703 1.7872785 43.98944 2021/12/12.00

Magnitudes Graph m1 = 17.0 + 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.