June 13, 2014

M51 (April 29, 2014)


I know---I don't need another image of M51.  But I had a few hours and wanted to use the refractor.  I always like the look of stars taken through it.  Of course, with the H9C the scope is working far below full resolution.  And I seemed to get a lot of red in the galaxy.  Perhaps the sky was more transparent to Ha, or perhaps it was particularly opaque to blue.  Either way, here is the result.

Telescope: Astro-Tech AT111EDT and William Optics AFR-IV (eff. at f/5.6)
Camera and Exposure: SXVF-H9C 20x600"), Alnitak Flat-man flats
Filter: Astronomik CLS
Guiding: SX Lodestar and SX OAG
Mount: Takahashi NJP
Software: Nebulosity, Photoshop CS3
Location: The Woodlands, TX

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