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M20 "trifid nebula"(Gimmi Ratto)
| Acquisition Date | : | June 3, july 6, 2005 |
| Camera | : | Unmod 300D |
| Camera Settings | : | RAW iso 400, 28x8' |
| Telescope | : | Celestron 8 |
| Adapter / Prime / Afocal / Other | : | f6.3 |
| Processing Package / Processing Applied | : | Offset, adaptive dark, flat.
Gradient subtraction. I produced two different layers with different levels of stretch directed at the lower and higher lights. Layers were blended in photoshop cs. Levels, curves and moderate unsharp masking in CS. Neat image. |
| Web Site | : | http:\\icehome.in.cnr.it\astro\astro.htm |
| NOTES | : | This object is very low on the horizon with really bad light pollution. |
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