With another clear day, today’s solar photoshoot was easy. I removed the Barlow lens that I used yesterday because I really didn’t see any advantage to using it. The pixels in the planetary camera that I’m using are so small that the image resolution is limited by the optical instrument rather than the camera. It was worth a try.
Below are the H-alpha and broader band solar disk images. The H-alpha image show’s ongoing, wispy prominence activity. For the sake of comparison here is a NASA image taken in UV light showing a very impressive prominence from March 30,2010.
Rather than crop the right-hand image to show a sunspot cameo, today I have annotated the sunspots using the complete image shown below. Note that the white arrows in the northern hemisphere point to smallish sunspot groups that are unnamed.
