Ultraviolet Sun

Today, March 1, the sun shows us 5 active regions, in the northern hemisphere, to the west we can see the couple AR2954 and AR2955, which have already spent 9 days transiting the disk of the sun without major changes. Also in the northern hemisphere we can see AR2956 and AR2958. In the southern hemisphere, we find AR2957.
These last three active regions contain small sunspots.
I decided to make this photograph in the line of Calcium (Cak) since in this way the active regions are much more evident.

To take this picture I used a Sky Watcher Esprit 120 telescope with a Cak Lunt B1800 Calcium module and a ZWO 183MM camera.

Autore: Eduardo Schaberger Poupeau (sito)