Sharpless 101 (Sh2-101) is a H II region emission nebula located in the constellation Cygnus. It is sometimes also called the Tulip Nebula because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years from Earth.
The nebula is very faint, and requires a great deal of exposure, especially through narrowband filters. Weather in southern Arizona is making the process a bit slow.
This image was taken over several nights ending on October 26, 2016, with my Hyperion Astrograph and SBIG ST-8300 camera. It totals 19 hours so far.