Region of the Sky Around the Constellation Cepheus

Region of the sky around the constellation Cepheus. At the center of the image is the bright reflection nebula, the Iris Nebula, NGC 7023. To the right of center is the reflection nebula, the Ghost Nebula, sh 2-136. The region is composed of dark molecular clouds.

See the next two images in this album for a close look at the Iris and Ghost Nebulas.

Image processed by Andrew F. Macica, original data from Telescope Live.

Imaging Details:

Observatory: IC Astronomy Observatory, Oria, Almería, Spain

Telescope: Takahashi FSQ-106EDX4

Aperture: 106 mm, w/ 0.73x focal reducer, f/3.6

Focal Length: 382 mm

Camera: FLI ProLine PL16803 CCD

Filters: LRGB

Total Exposure: 9 hours 0 minutes

Image Processing:

PixInsight 1.8.9-3 Ripley (x64);

BlurXTerminator, NoiseXTerminator, StarXTerminator (RC Astro);

Adobe Photoshop 25.12.4;

Adobe Lightroom Classic 15.0.1

Instruction on PixInsight from Adam Block Studios.