C/2024 J4 ( Lemmon )

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Updated on August 10, 2025

Profile Discovery Date May 11, 2024 Magnitude 20.1 mag Discoverer K. W. Wierzchos (Mt. Lemmon Survey) Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2025 Apr. 26.01805 TT Pike q 5.6951284 (2000.0) P Q z +0.0001590 Peri. 127.85927 -0.45857033 -0.83891092 +/-0.0000017 Node 19.30483 -0.78063878 +0.22264503 e 0.9990943 Incl. 117.53085 +0.42463673 -0.49664642 From 596 observations 2024 May 11-2025 Aug. 5, mean residual 0".5.

Magnitudes Graph m1 = -4.0 + 5 log d + 25.0 log r

The orbital elements are published on M.P.E.C. 2025-P113. The magnitudes graphs are made with Comet for Windows.