SH2-115 Faint emission nebula (James Cloudman)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg)

SH2-115 Faint emission nebula, James Cloudman

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SH2-115 Faint emission nebula

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SH2-115 Faint emission nebula

This image of SH2-115 is a faint emission nebula cataloged by S.Sharpless in 1959, was taken on August 18th, 2023 from my observatory. I was able to capture this image even with the heavy smoke form the fires in Canada obscuring the night sky.
SH2-115 is a faint emission nebula cataloged by S.Sharpless in 1959. It is located in the northern regions of the constellation Cygnus, about 2° northwest of the bright star Deneb 1. This extensive HII region is broken into two basic parts - one being roundish and associated with a bright cluster known as Berkley 90. SH2-115 dominates the center and right half of the image, with round SH2-116 at upper left. Both are members of the Sharpless catalog of nebulae and lie in northern Cygnus, not far from the famous North America nebula. They lie about 7500 light years away 2.
One interesting fact about SH2-115 is that it is powered by hot stars in star cluster Berkeley 90 1. The cluster stars are likely only 100 million years old or so and are still embedded in Sharpless 115. But the stars’ strong winds and radiation have cleared away much of their dusty, natal cloud 1. At the emission nebula’s estimated distance, this cosmic close-up spans just under 100 light-years 1.

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