The Iris Nebula (also known as LBN 487, Caldwell 4) is a reflection nebula lying about 1300 light years away. It gets its dominant blue color from an adjacent hot, young, blue star.  Inside the nebula is the star cluster NGC 7023.

Technical Information       
Date:                       August, 2014
Location:                 Green Valley, Arizona
Telescope:              Takahashi FSQ-106EDX
Camera:                  SBIG STT-8300M
Filters:                     Astrodon Gen 2
Mount:                     AstroPhysics 1200
Exposure:                LRGB = 7:2:2:2 hours, all unbinned
Software:                 Acquisition: Maxim DL 5, TheSkyX, Pinpoint, CCD Commander
                                Processing: CCDStack, PhotoShop CS6 with various plugins

Iris Nebula