Instrument : CoMP-S
Observatory: Lomnicky Stit Observatory
Institution: Astronomical Institute, Slovak Academy of Sciences,
             Tatranska Lomnica (Slovakia)

lso_comp-s_20121020_prominence_0656_0854.png

An example of a quiescent prominence, observed on October 20, 2012 near the south pole
of the Sun sequentially in the spectral lines of H I 656 nm and Ca II 854 nm
(top - H I 656 07:08:40 UT, bottom Ca II 854 nm 07:04:43 UT).