Sunday, September 10, 2017

What a Difference a Day Makes!--The Sun 09/09/2017

After all the excitement of X-Class flares and auroras as far south as Kentucky (but we did not see them here in Indiana, unfortunately), the sun today looked more like a sedate star in a solar minimum:


Today's image is dominated by AR2678, toward the center of the disk. ARs2673 and 2674 are close to the edge of the disk and will disappear in the next day or two.

No comments:

Post a Comment

16 hour integration of the Heart Nebula with the Dwarf 3 telescope

The Heart Nebula can be a challenging object due to its low surface brightness, especially in my neighborhood where I image under Bortle 8/9...