Perseus Double Cluster - NGC 869/884 (Caldwell 14)
The Double Cluster in Perseus (NGC 869/884 or Caldwell 14) consists of a pair of naked-eye open star clusters in the constellation Perseus. Also known as h (NGC 869) and chi (NGC 884) Persei, the two clusters are located at distances of 7600 and 6800 light years, respectively. They are relatively close together in space. Based on analysis of individual stars, the ages of the two clusters are 5.6 million years (h) and 3.2 million years (chi).
Takahashi Epsilon 180 ED Hyperbolic Astrograph
For a lower power view of this object using the Takahashi E-180 Astrograph see Perseus Double Cluster (TAK E180).
Technical Details
- Object: Perseus Double Cluster
- Other Names: NGC 869/884, Caldwell 14, h & chi Persei
- Object Type: Open Star Cluster
- Other Names: h+chi Persei, NGC 884 (chi Persei) and NGC 869 (h Persei), Caldwell 14
- Date/Time: 2013 Dec 31 at 4:05 UTC
- Location: Bifrost Astronomical Observatory, Portal, AZ
- Mount: Astro-Physics 1600GTO
- Telescope: ASA N12 Corrected Newtonian Astrograph
- Camera: SBIG STL-11000M
- Field of View: 1.91° x 1.28° at 1.72 arc-sec/pixel (web version: 7.4 arc-sec/pixel)
- Exposure: L (10x300s), R:G:B (8x150s)
- File Name: hkPer-B01w.jpg
- Processing: CCDStack 2 and Photoshop CS6
- Original Image Size: 2672 x 4008 pixels (10.7 MP); 8.9" x 13.4" @ 300 dpi
- Rights: Copyright 2014 by Fred Espenak. All Rights Reserved. See: Image Licensing.
