Antilhue - Chile
Antilhue - Chile
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| Designation | NGC 7293, Helix Nebula, Bennett 129 |
| Object type | Planetary nebula |
| Coordinates | 22 h 30 min - 20° 47' (Aqr) |
| Description | This remarkable object is the
nearest and largest (15'x12') planetary nebula as seen through amateur
instruments. The blue central star is mag 13.6 and only 500
lightyears away. Field of view is approx. 36 x 24 arcminutes with
north towards the one o'clock position. Click on the image above for a higher resolution version.
Here is an earlier version, taken through a 6" refractor. |
| Exposure | (L+N)RGB (120+200):40:40:40 min @ -25°C, N = no filter |
| Camera | SBIG STL-11000 with Astronomik Type II LRGB Filterset, selfguided |
| Optics | RCOS 14.5" Ritchey-Chrétien @ f/9 (prime focus) |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, Sigma Pre Beta 11, Adobe Photoshop CS |
| Location - Date - Time | San Esteban (Chile) - LRGB 21Aug2004 - 05:00 UTC resp. N 4-5Oct2005 - 02:00 UTC |
| Conditions | Transparency 6/10, Seeing 5/10 resp 7/10, Temperature + 2°C |
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