Saturday, August 11, 2012

AR 1543 with Edge Prominence


I was processing this image of Sunspot 1543 when I noticed the rather nice prominence on the edge of the disk.  Spicules are almost resolved; it's very tough to image them with the small aperture of the PST and a single etalon.

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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...