Double Cluster

The Double Cluster, also known as Caldwell 14, comprises two open clusters: NGC 869 and NGC 884, commonly referred to as h Persei and χ (chi) Persei, respectively. These clusters are located close to each other in the constellation Perseus and are visible to the naked eye. Situated approximately 7,500 light-years away, they reside within the Perseus Arm of the Milky Way galaxy.

Technical DetailsObject: Double ClusterLocation: Portsmouth, UKMount: SW Alt Az EQBortle Scale: 7Scope: Redcat 51mmCamera ZWO 2600 Colour (-10)Nights: 10th January 2025Total Subs Used: 319 x 30 Secs. Seeing: FairFits Stacked: ASIStudio
Post-Processing Steps

GraXpert - Background extraction and Denoise.

2. Siril - colour calibration, photometric colour calibration, removing green noise, colour calibration, histogram stretch, colour saturation.3. No Calibration frames4. No guiding

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