M20 Trifid Nebula

Image: M20 Trifid Nebula by Pat Knoll

San Diego City Limits
M20 - Trifid Nebula - Sagittarius

Meade 10inch LX200 classic Prime Focus - SBIG ST8-XME CCD - AO8 guiding
6x5 minutes - bin 1x1 - Hydrogen Alpha
6x5 minutes - bin 1x1 - luminance 2x5 minutes - bin 2x2 - each R,G,B
Processed using CCDOps - PictureWindow 5 - PhotoShop

Image: M20 Trifid Nebula by Pat Knoll

Cropped - Full Resolution
Same equipment and exposure information as previous image

Image: M20 Trifid Nebula by Pat Knoll

Fooling Around
Reduced the Hubble image down to the size of my image

Image: M20 Trifid Nebula by Pat Knoll
Fooling Around
Eliminating the Stars

Image: M20 Trifid Nebula by Patric Knoll - 2007

OCA Anza Observatory
M20 - Trifid Nebula - Sagittarius

Kuhn 22 inch Cassigrain Prime Focus
SBIG ST8XME CCD - CFW8 color filter - AO7 guiding
10x180 sec - bin 1x1 - luminance 2x240 sec - bin 2x2 - each R,G,B
Processed using CCDOps - AIP4Windows - PhotoShop