C/2019 S4 ( Lemmon )

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Updated on July 8, 2020

Profile Discovery Date September 19, 2019 Magnitude 21.4 mag Discoverer D. Rankin (Mount Lemmon Survey) Pictures

Orbital Elements Epoch 2020 Apr. 21.0 TT = JDT 2458960.5 T 2020 Apr. 7.93619 TT Rudenko q 3.4417465 (2000.0) P Q z +0.0041442 Peri. 71.35420 +0.17418406 -0.41758977 +/-0.0000016 Node 63.16894 -0.12877428 -0.90751075 e 0.9857368 Incl. 92.02499 +0.97625668 -0.04519975 From 86 observations 2019 Sept. 17-2020 June 18, mean residual 0".4.

Magnitudes Graph m1 = 2.0 + 5 log d + 25.0 log r(t - 70)

The orbital elements are published on M.P.E.C. 2020-M114. The magnitudes graphs are made with Comet for Windows.