By John Dolan | 2019-07-04
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On 07/08/2019 03:45 pm by Dr Ski | Valencia, Philippines
A new sunspot emerged on the Sun's eastern limb. Even with high magnification it is difficult to see using a White light filter. The Hydrogen-alpha filter brings out the active area nicely
(white areas are much hotter than the surrounding chromosphere).
Canon IXUS185, Coronado P. S. T.
Eyepiece projection at 26X
1/13s, ISO400
