NGC 7142 & NGC 7129 - Open Cluster and Reflection Nebula in Cepheus


NGC 7142 is the open cluster at the upper right. It it estimated to be 3 billion years old. Despite its very old age, the cluster contains several blue "stragglers".

NGC 7129 is the reflection nebula visible at the lower right of the frame. It contains approximately 130 young (i.e., 1 million-year-old) stars. The reddish formations within it are Herbig-Haro objects - jets formed by stellar winds of newborn stars.

Although these objects appear very close to each other, NGC 7129 lies 3 thousand light years away while NGC 7142 is twice that distance.

Telescope: Takahshi TOA130 NFB
Camera: Modified Canon T4i (650D) ; ISO 1600
Mount: iOptron CEM60
Guiding: QHY 5L-II-M on 60mm guide scope
Exposures: 24 @ 5 min.
Processing:  Images were captured, aligned, and combined using ImagesPlus. Composite image was adjusted in Photoshop. Topas Detail and DeNoise were applied.
Location: My backyard observatory in SE Minnesota. Captured on 9/16/2020
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