NGC 884  NGC 869
The Double Cluster

Combination of 13 red filter images; 15 green filter images; and 20 blue filter images.
SBIG ST-8XE CCD. 300mm f/3.5 Tamron lens.

Commonly known as the "Double Cluster" NGC 869 and NGC 884 make an impressive sight in the telescope. For a long time there has been speculation that the two clusters are associated with each other. However recent research has put doubt in this idea as it indicates that the two clusters are at different distances and have different ages.

Combination of 20, 1 minute images using red, green and blue filters.
SBIG STL-1001XE CCD. 5" f/5 refractor at prime focus.

Combination of 15, 1 minute images unfiltered.
SBIG ST-8XE CCD. 5" f/9.8 refractor at prime focus.

The above image combined with the colour data from the first image..

NGC 869
Combination of 15, 1 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.

NGC 884
Combination of 15, 1 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.