NGC 6888 - The Crescent Nebula
Ha-RGB image of the Planetary nebula in Cygnus, surrounding a Wolf-Rayet star.
A planetary nebula is a shell of gas that has been shed by a star late in its lifetime.
Mouse Over Image for Ha Only
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NGC 6888 - The Crescent Nebula Ha-RGB image of the Planetary nebula in Cygnus, surrounding a Wolf-Rayet star. A planetary nebula is a shell of gas that has been shed by a star late in its lifetime. Mouse Over Image for Ha Only |
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Magnitude: 10, Surface Brightness: 15.49, Dimension: 20'x
10', RA: 20h 12m 9s, Dec: +38 20' 9" |
| Optics | Celestron 80ED @ f/7.5, guided with an 8" LX200 Classic @ f/5.9 |
| Mount | LX200 |
| Camera | Starlight Xpress SXV-M7 |
| Filter | Astronomik 13mm H-Alpha, Astronomik RGB II, IDAS LPR |
| Exposure | Ha : 21 - 10 minute subs, RGB: 60 min. each, combination of 5 and 8 min. subs. |
| Processing | Acquired in AstroArt3, DDP. , final work in Photoshop7 |
| Date | 09-27-05 |
| Location | Elk Grove, CA |
| Notes | Seeing and transparency average. |