| Date: |
September 27, 2005 |
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| Exposure: |
LRGB: 210:120:150:120
21 x 600s L, 8 x 900s R, 10 x 900s G, 8 x 900s B |
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| Processing: |
CCDAutoPilot2 in control for all images - CCDSoftV5 for image acquisition. MaxIm for image calibration,(5 each RGB flats, bias subtracted and median combined, 60 bias frames median combined, 20-900s darks Sigma Reject combined), alignment, normalization, stretch, and RGB combine. 2 iterations of CCDSharp on the Luminance layer. Photoshop CS for RGB processing,final adjustment and jpg conversion. |
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| Conditions: |
Good, clear with nice transparency and lower humidity (60-70%) Mag 4-5 Skies |
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| Scope: |
RCOS 16" Truss @ f/6 |
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| Camera: |
ST-10XME/CFW-8A -10° |
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| Comments: |
A very nice barred spiral galaxy, with a central bar. The blue knots indicate regions of new-forming stars in its arms. The knots are blue because there is a predominance of very hot, young stars in them. It is located in Pegasus, and is approx. 105 million light years away. |
