Omega Nebula is an Emission Nebula in the southern sky and at a distance of 5,500 light-years away. On this very warm July night with reasonably stable and clear air, the moon is just a sliver and was down before this run started. I went with 240 second subs and used 34 out of the 45 frames taken for an integrated time of 2 hours 16 minutes.
“also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula is an H II region in the constellation Sagittarius.”
“M17 contains one of our galaxy’s youngest star clusters, at only 1 million years old. However, many of the young stars in this cluster are impossible to see because of the gas and dust that surrounds them. The powerful radiation from the young stars evaporates and erodes the dense clouds of cold gas in which new stars form. One such pocket of gas is seen at the center of the brightest region of the nebula and is about 10 times larger than our solar system. Other dense pockets of gas have formed the remarkable dark features jutting inward”
