Messier 17 or NGC 6618 also Known as Omega Nebula and Swan Nebula is the constellation Sagittarius. The Omega Nebula is between 5.500 light-years from Earth and it spans some 15 light-years in diameter. The image taken with narrowband filters in HTS Hubble Telescope Color palette. |
Location / Date |
Mauna Keratea Obs August 2010-11 |
Telescope |
WO Zenith Star ED70 |
Field Flattener |
Astro -Tech 2” |
Mount |
Sky Watcher EQ6 Pro |
Camera |
QHY9 KAF 8300 mono CCD, Temp -25 C |
Guiding | QHY 5, TS Finder 8x50 |
Filters / Exposures |
Ha = 18x1200 bin 1x , Oiii=12x900 bin 2x , Sii= 12x900 bin 2x |
Total Exp[osure Time |
15 hours |
Software |
Nebulosity 2, Deep Sky Stacker, PixInsight, Photoshop CS5, Starry Night, EQmod |