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the Owl Cluster in Cassiopeia
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"Of the dozens of open clusters in Cassiopeia, none inspires as many visual flights of fancy as NGC 457...." From Stephen James O'Meara's book "The Caldwell Objects"
More informations are available at the seds.org website |
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| Optics |
130 mm f/6.4 Astro-Physics EDF Refractor |
| Mount |
Astro-Physics AP 900GTO. |
| Camera | SBIG ST-10XE. |
| Filters | SBIG CFW8A.With Astrodon LRGB Ha filters |
| Focuser | Robofocus focuser and Focusmax software |
| Dates | October 2006. |
| Location | Lentin Observatory |
| Exposure | LRGB = L:90mn,bin1; R:60,G:60,B:72 minutes.bin2. Scale 1.69^s/pixel |
| Acquisition | Image data acquired remotely using ACP4 Observatory control software., MaxIm DL 4 |
| Processing | MaxIm DL 4, Photoshop CS2, Registar, |
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Antoine Vergara