NGC 247 in Cetus
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Scope: C8 f/5.6; Location: Laguna Mountains, CA; 29 September 2008; Camera: Artemis285
Exposure: 9 x 8 min Luminance exposure (bin 1x1) with Baader IR Block Filter; 6 x 3 min RGB (bin 2x2)
Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. Luminance and Color channels were scaled and rough color balanced in Astroart. Central Gradient was removed on all channels in Astroart. Channels were co-registered in Astroart. The 8 minute IR block exposures were used for the main luminance construction with level adjustments and curves to bring out object features. LRGB combine was done in Photoshop. G2V factors applied to color channels. Final Image size is approximately 1392x1040.
This image was guided; North is to the right. NGC 247 is one of several galaxies in the Sculptor galaxy group - it is gravitationally bound to the Sculptor galaxy NGC253. This galaxy group is one of the nearest to our Milky Way galaxy. NGC 247 is about 12.2 million light years distant from Earth. This image replaces an earlier image that can be seen in the Archives here. Horizontal FOV is 27'
Image Center is approximately - Equatorial 2000: RA: 00h 47m 06s Dec: -20°46'00"
All images and content remain the property of Jim Thommes - copyright 2003 - 2012
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