M20 (Trifid Nebula)
Click on photo for a larger image.
| Instrument: | Meade 178ED 7" Apochromatic Refractor Telescope |
| Focal Ratio: | f9 (prime focus) |
| Camera: | SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.) |
| Exposure: | 10 x 1 minutes Luminance, 6 x 1 minutes each R/G/B, all unbinned |
| Guiding: | Off-Axis with STV Autoguider
(Santa Barbara Instrument Group) (See product review in May, 2003 issue of Astronomy magazine.) See Photo/Guiding Equipment. |
| Date: | 6/21/04 |
| Post Processing: | CCDSoft, CCDSharp, MaxIM DL, Photoshop CS |