M 20, The Trifid Nebula, in
M20, the Trifid Nebula, has both
emission (red) and reflection (blue) areas. One of many nebulas in Sagittarius,
it can be seen with M8 in a wide angle image here and here.
|| RCOS 12.5 inch
Ritchey-Chretien telescope at f/6 on an A-P 1200 GTO mount. Camera: SBIG
ST-10XME with CFW8a filter wheel. Controlled with MaxIm 4.10.
|| 25 minutes ( 5 x 5
min) each R, G, and B exposures with Astrodon filters.
|| Stacked and color
combined in MaxIm, stretched in Photoshop CS2.
to New Stuff
to Astro Images