Final (for now) process of images of star forming region Cepheus OB4 captured at Oregon Star Party. To the left of the image is diffuse nebula NGC7822, with the OB4 complex to the right. The bright star just below center right is BD+66 1679, a magnitude 5.7 K1 star which is the only naked eye visible object in the image. The hydrogen cloud behind it is variously known as Sharpless 171 and Cederblad 214, and surrounds a young star cluster designated Berkeley 59 which provides the ionizing radiation illuminating the nebula.

This image is a combined 4 hours and 40 minutes exposure time captured the nights of August 22nd and August 23rd at Oregon Star Party. The combination of Takahashi FSQ-106 optics and QSI583 camera gives a field of view of approximately 2.4 degrees across the diagonal.


Camera QSI583wsg
Optics Takahashi FSQ-106ED
Mount Astro-Physics Mach1 GTO
Luminance 14 x 600s
Red 9 x 300s
Green 10 x 300s
Blue 9 x 300s