| Date: |
June 23, 2003 |
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| Exposure: |
LRGB : 180:60:60:90
18 x 600s L (1 X 1), 6 x 600s R,G , 9 x 600s B (2 X 2) |
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| Processing: |
MaxIm for Image calibration, 25 flats, dark subtracted and median combined, 25 bias frames median combined, 25-600s darks (1 X 1) median combined, 25-600s darks (2 x 2) median combined, alignment, normalization, stretch, and RGB combine. Photoshop 7.0 for LRGB processing,final adjustment and jpg conversion. |
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| Conditions: |
Clear, average seeing and transparency. |
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| Scope: |
Celestron C14 (0.721 arcsec/pixel) |
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| Camera: |
ST-8XE, CFW-8A -15° |
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| Comments: |
The skies finally cleared, and we had a few days of good transparency, but the seeing was not great. The humidity for all the images was ranging from 90 - 100%, so I did not run the water cooling and chose to take the images at -15C which is about as low as I can go in 70F weather. I am having to take more and longer exposures as my light polution seems to be on the rise. |
