Tuesday, August 14, 2012

NGC 6888

It was wonderful to see the stars the last few nights. The air was calm, cool with low humidity, the skies steady – perfect weather for imaging!

The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light years away from our home planet. .

Optics:  Deep Sky Instruments RC10C
Mount:  Astro-Physics AP900GTO
Camera:   SBIG ST2K XM
Guiding Camera:  SBIG ST-i
Filters Astrodon  Ha and O3
Location:  Roswell, Georgia

Exposure Details:
Ha = 330 Minutes (mapped to red)
O3 = 480 Minutes (mapped to blue & green)