21P/Giacobini-Zinner (2018)

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Updated on April 4, 2021

Profile Pictures

Orbital Elements Epoch 2018 Aug. 30.0 TT = JDT 2458360.5 T 2018 Sept. 10.27736 TT Rudenko q 1.0128277 (2000.0) P Q n 0.15063436 Peri. 172.86052 +0.98463333 -0.10352110 a 3.4982703 Node 195.39192 +0.12219740 +0.98377109 e 0.7104776 Incl. 31.99803 +0.12475976 -0.14655317 P 6.54 From 7387 observations 1900 Dec. 25-2020 Jan. 30, mean residual 1".0. Nongravitational parameters A1 = +0.00, A2 = -0.0838.

Finding Charts

Magnitudes Graph m1 = 9.0 + 5 log d + 20.0 log r(t + 8) [ , 0] ( - 2018 Sept.10) m1 = 9.0 + 5 log d + 16.0 log r(t + 8) [ 0,190] (2018 Sept.10 - 2019 Mar. 19) m1 = 11.5 + 5 log d + 10.0 log r [190, ] (2019 Mar. 19 - )

The orbital elements are published on M.P.E.C. 2021-F20. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.