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Physical Characterization of Interstellar Comet 2I/2019 Q4 (Borisov)

  • Authors: Man-To Hui, Quan-Zhi Ye, Dora Föhring, Denise Hung, and David J. Tholen

2020 The Astronomical Journal 160 92.

  • Provider: AAS Journals

Caption: Figure 3.

Selected examples of median coadded images from the 0.6 m NEXT telescope of interstellar comet 2I/2019 Q4 (Borisov). Only the image from 2019 October 3 is in the R band; the rest are in the r band after a renovation at Xingming Observatory. All images have the equatorial north up and east left. A scale bar of 30″ in length is shown. As in Figure 2, the position angles of the antisolar direction (white arrow) and the negative heliocentric velocity projected onto the sky plane (cyan arrow) are labeled.

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