NGC 654-663
  

NGC663-654LRGB(500).jpg (129189 bytes)

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NGC 654
Object Type:
Open cluster
Constellation:
Cassiopeia
Magnitude:
6.5
Size:
5'
NGC 663
Object Type:
Open cluster
Constellation:
Cassiopeia
Magnitude:
7.1
Size:
16'

These bright open clusters are an attractive pair in a wide-field instrument.

Equipment: Vixen 102-ED/ST-10XME/Astrodon LRGB filters/Paramount ME
F-ratio: f/6.5
Exposure:
LRGB: L 8 x 5 minutes: R 8 x 5 minutes: G 8 x 5 minutes: B 8 x 5 minutes: RGB binned 2x2
Date:
December 7, 2007
Location:
Landers, California, USA
Technical Notes:
Individual exposures were taken using
CCDAutoPilot2 and then sigma combined. The RGB image was created in Registar 1.0. A Gaussian Blur of 0.5 pixel was applied to the RGB image and to the dim portions of the luminance and RGB images. Unsharp Mask of 1 pixel with a Threshold of 1 was applied to the bright portions of the luminance image at 50%. The RGB image was duplicated and then combined with the original using Soft Light to enhance color.

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