Sharpless 101 (Sh2-101) is an emission nebula located in the constellation Cygnus. It is sometimes called the Tulip Nebula because it appears to resemble the outline of a tulip. Ultraviolet radiation from the young energetic stars at the edge of the Cygnus OB3 Association, including the O star HDE227018, ionizes the atoms and powers the emission from the nebula. HDE227018 is the star that is encapsulated in the OIII bubble just right of center in the image. At about 70 lightyears across the complex, the beautiful Tulip Nebula blooms about 8000 lightyears from Earth. The Tulip Nebula was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae.

Image Capture Details:

16x900s each Ha, SII and OIII. Processed in HSO.
Telescope - PlaneWave 12.5" CDK
Mount - iOptron CEM120EC2
Camera - ZWO ASI2600MM
RA 20hrs 00' 04"
DEC +35degrees 23' 22"
Position Angle (CCW) - 30 degrees
Location - Calgary Alberta
Date - July / August 2024
Constellation - Cygnus
Distance - 8,000 lightyears

Processed in ImagesPlus, PixInsight and PhotoShop