bwana wrote:
35°C (95°F) in the observatory but solar imaging is 'hot'!
Shot with a David Levy Comet Hunter scope (730mm, f/4.8), Baader White Light filter, 2.5x PowerMate and Sony A7R V (1/200 sec., ISO200) on an iOptron CEM26 mount.
Best image of 113 picked using AutoStakkert. Postprocessed in Lightroom and Skylum's Aurora HDR.
The downloads are large but worth a look if you're interested in the detail.
Enjoy!
bwa
Nice work, bwa. You clearly show the umbra (coolest center) and penumbra of some of the sunspots. I cropped and enlarged one of the upper large sunspots, and the granulation in the photosphere is clearly observable. --Richard