Home Image Gallery Clusters Galaxies Lunar Nebulae Solar System Sun
Date/Location September 28, 2016 KEASA Observatory, Barking Sands, Kauai, Hawaii
Camera and Settings SBIG ST-2000XCM CCD Camera -5°C
Telescope Astrotech 8-inch Ritchey–Chrétien with Televue 0.8x focal reducer/field flatterner
Mount Celesctron CGE Pro
Exposure 40 minutes (4 x 10 min)
Processing CCDOpts, Images Plus 5.75, Photoshop CS5
Other Mag. 5.9 open cluster in the constellation Sagittarius. 14 arc minutes in diameter.
M21
IScroll down to bottom of image for a detailed description.