Sh2-135 is an H II emission nebula in the constellation Cepheus without a common name.
It is located about 10,000 light-years away in the southern part of the constellation. The most suitable period for its observation in the evening sky falls between July and December. Observatories in Earth’s northern hemisphere find it especially easy. There, it is circumpolar up to warm temperate regions.
I captured this image using APT for session management. It controlled a Skywatcher EQ6r Pro mount. I used a Skywatcher Esprit 120ed telescope at 860mm FL. The camera was an ASI2600MC Pro astro camera. I had an assortment of goodies as well.
Sh2-135 is the bright circular shaped object on the left side of the image. A ball of Hydrogen gas ionized by newly formed stars. The bottom center gas clouds are cataloged as LBN 486 in Lynd’s Bright Nebula catalog (LBN). The bright irregular nebula on the right is a combination of several entries, LBN 489, LBN 490, and LBN 491.
