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Open cluster and the Bubble Nebula
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Click on image for a larger view
Open cluster and the Bubble Nebula
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M52 (NGC 7654) in the center left, is some 5,000 light-years away, it's a fine open cluster located in Cassiopeia. The delicate, floating apparition on the right, is cataloged as NGC 7635 - The Bubble Nebula. A mere 10 light-years wide, the tiny Bubble Nebula and the larger complex of interstellar gas and dust clouds are found about 11,000 light-years distant, straddling the boundary between the parental constellations Cepheus and Cassiopeia. More informations are available at the wikipedia.org website and SEDS website |
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| Optics |
130 mm f/6.2 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 | August 2006. |
| Location | Lentin Observatory |
| Exposure | LHaRGB = 57:570:60:60:72 minutes.. L & Ha bin1, RGB 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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copyright Antoine Vergara