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The Double Cluster in Perseus
The Double Cluster in Perseus, NGC 869 and NGC 884, are bright (naked-eye visible as a hazy patch) relatively young open clusters. Each cluster contains about 300 stars, many of which are blue-white supergiants. Image is a total of 5 hours combined exposure (20 x 900 sec lights, -20 degrees C; 35 darks; 126 flats; 128 bias) taken with an SBIG STF8300c camera; Takahashi Epsilon 180 f/2.8 astrograph; Astro-Physics 1200 mount; Image acquisition with MaxIm DL 6; processed with PixInsight 1.8.3.1123.
Double_Cluster_in_Perseus.jpg Sh2-206_Supernova_Remnant_in_the_Constellation_Taurus.jpg M46M47NGC2423inPuppis.jpg
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