NGC663 & NGC654

Image information:

Date: 08/07/2010
Equipment: SBIG ST2000XM with CFW10 and Astrodon I series Gen II LRGB filter set through WO ZS105ED telescope on Losmandy GM8 mount. WO ZS105ED working at f5.6 with WO 0.8X reducer/flattener.
Image type: LRGB
Exposure time: 8X6min Luminance binned 1X1, RG&B 8X4min each binned 2X2

Object information:

Object designations:

  • NGC663, Caldwell 10
  • NGC654
Object type:
Open clusters
Object size:
  • NGC663 - 16'
  • NGC654 - 6'
Constellation: Cassiopeia
NGC663 and NGC654 are nice pair of open clusters in the constellation of Cassiopeia. NGC663 is a young open cluster consisting of some 80 stars. It is 6500 ly distant and it has diameter of 31 ly. NGC654 is 6700 ly distant and consists of some 60 stars in diameter of 11 ly. Both clusters are significantly obscured by interstellar dust in front of them.

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