Wednesday, June 2, 2021

Sun with Sunspot AR2827



This evening the Sun was photographed with two sunspots (of which one is AR2827). The picture is a combination of two pictures : one with baader astrosolar ND3.8, the other with baader astrosolar ND3.8, solar continuum filter (540nm) and IR/UV blocker filter.
The combination was made using CS4 in DNG format.

This was also a general repetition for next week partial solar eclipse.