two wavelengths

The chromosphere of the sun in two wavelengths... CaK disk combined with Ha spicules and prominences. Additional recent full disk portraits of the sun can be found here.

May 15, 2013/ captured with 90mm Coronado CaK telescope, courtesy Dennis ZywiczynskiLittle Big Man and PGR Grasshopper Express 6 megapixel camera

© Alan Friedman | all rights reserved