On Wednesday, October 1, 2014 3:32:50 PM UTC-5, palsing wrote:
On Wednesday, October 1, 2014 11:44:18 AM UTC-7, Uncarollo2 wrote:

Now that summer has ended, the summer Milky Way is headed west and will soon be replaced by that part of the sky dominated by galaxies. Here is a last look at part of the Milky Way laced with clouds of hydrogen.







http://www.buytelescopes.com/content...nt-nebula.jpeg







http://www.buytelescopes.com/content/images/thumbs/0054588_milky-way-and-crescent-nebula.jpeg







UncarolloMilkywayfan



Very nice. This past weekend I cruised all around this area with my 25"dob... but it sure didn't look like that!



\Paul A

It's hard to see H-alpha. Best you can do is with an H-beta filter, or a narrowband nebula filter. Still, these are faint clouds that are recorded easily with a fast optical system. At 12" aperture and F3.8 this is achieved in very short exposures of 300 seconds or so.

UncaNebula