(click on image for larger version)
M17, the Swan Nebula, is an HII region in the constellation of Sagittarius the archer. Massive stars forming in this cloud of gas and dust emit energetic (UV) radiation which ionizes the gas, causing it to glow.
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Stellarvue SV102ABV (102 mm doublet apo) @ f/6.4
Losmandy G-11
SBIG ST-2000XM and Astrodon LRGB Filters
L (13x5 min), R (4x5 min), G (4x5 min), B (4x5 min)
Hale Pohaku (elevation 9200 ft. on Mauna Kea)
