The Hydrogen Coma of the Comet 67P/C-G (IMAGE)

National Institutes of Natural Sciences

The Hydrogen Coma of the Comet 67P/C-G

Caption

Processed and cropped hydrogen-Lyα image of the comet 67P/C-G in Rayleigh units (upper panel) taken by the LAICA telescope on Sept. 13, 2015, UT, and the hydrogen coma appearance predicted by a two-dimensional axi-symmetric model of the atomic hydrogen coma (lower panel). The yellow dotted arrow in the lower panel indicates the direction to the sun at the time of observation.

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NAOJ

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