M20
M20
Object | |
| Description: | Trifid Nebula |
| Type: | Diffuse Nebula |
| Constellation: | Sagittarius |
| Distance: | 5,200 ly |
Image | |
| Date: | July 1, 2011 |
| Location: | Palomar Mountain, CA |
| Exposure: | Ha 6x10, Lum 6x5 (bin 1x1), R 3x5, G 3x5, B 3x5 (bin 2x2) |
Equipment | |
| Optics: | Celestron C11 Carbon Fiber SCT w/XLT |
| Focal Length: | 1700mm @f/6 |
| Mount: | Astro-Physics 900GTO |
| Camera: | SBIG ST-10XME |
| Focuser: | Robo-Focus |
| Filters: | CFW8A, Astrodon LRGB, 3nm Ha |
| Software: | Maxim DL, CCDStack, Photoshop |