The Perseus Double Cluster
This in not one of our best images because we imaged it through dense fog, which is why the bright stars look hazy. However, we kept and processed the data because it was the first image we captured the very night our brand new Paramount MyT mount and portable pier arrived. We had a successful imaging session running the mount with The SkyX and CCD Autopilot despite the fog and just had to keep the image despite the hazy look.
NGC 869 (above right) and NGC 884 (above left) are a naked-eye pair of open clusters, better known as the Double Cluster, located around 7,500 light years away in the constellation Perseus. These two clusters are relatively young being 12.8 million years old, as compared to the Pleiades with an estimated age from 75 to 150 million years. The Greek astronomer Hipparchus, seeing this object as "a patch of light in Perseus," catalogued it as early as 130 B.C., but it was not discovered as a double cluster until many centuries later with the invention of the telescope. In the early 19th century, the Double Cluster was first recognized as two separate clusters by William Herschel. This object is included in the Caldwell catalogue of popular deep-sky objects, but not in the Messier catalog.
Other designations: Caldwell 14; the Double Cluster in Perseus; the Perseus Double Cluster
- Telescope: Stellarvue Raptor SVR105 @ f/7
- Accessories: Dew control by Dew Buster; Aurora flat panel
- Mount: Paramount MyT
- Camera: QSI683wsg-8 CCD @ -15C
- Guiding: Starlight Xpress Lodestar X2
- Filters: Astrodon Tru-Balance E-Series GenII LRGB
- Exposure: Lum: 18 x 300 sec; RGB: 12 x 300 each ( 4.5 hours total)
- Acquisition: CCD Autopilot 5; The SkyX
- Processing: PixInsight 1.8
- Date(s): Sept. 26, 2016
- Location: Portland, TN, USA
open clusteropen clustersstar clusterstar clustersPerseus DoublePerseus Double ClusterPerseus Double Star ClusterDouble ClusterDouble Cluster in Perseus