The Trapezium
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M42 The Trapezium |
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(Click on image for Full Resolution)
| Date: | December 14, 2004 |
| Exposure: | LRGB : 60:120:180:450 30 x 2s L, 30 x 4s R, 30 x 6 s G & 30 x 15s B |
| Processing: | Guided and acquired with CCDSoftV5. MaxIm for Image calibration,(20 flats each LRGB, dark subtracted and median combined, 40 bias frames median combined, 20-900s darks Sigma Reject combined), alignment, normalization, color combining. 5 iterations of CCDSharp for the Lum. Photoshop CS for final color balance and jpg conversion. |
| Conditions: | Average, Mag 3-4 Skies |
| Scope: | C14 @ F/11 |
| Camera: | SBIG STL-1301, -20° |
| Comments: | This was another test of the new STL-1301 camera. I wanted to see how it responded to short exposures on a bright object. Each LRGB exposure was set by testing how long I could go before blooming started on the central stars. The seeing was not really good on this night, but the short exposures helped limit its impact. |