Pinwheel galaxy revisited
The Pinwheel Galaxy is a popular target for amateur astrophotographers, and I am as about amateur as they get. For this shot I hired a telescope owned by iTelescope.net, located at Mayhill, New Mexico. Over three nights I collected several hours of red, green, and blue data. These were fed into the PixInsight processing program and massaged to produce what you see here.
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years away in the constellation Ursa Major, first discovered by Pierre Méchain on March 27, 1781, and communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries
One of these evenings I plan to photograph this galaxy from my light polluted patio to see how close I can come to this shot from a 7,000 ft mountain top. It should not be hard to tell the difference.
The heavens declare the glory of God, and the sky above proclaims his handiwork. –Ps 19:1