The Lobster Claw Nebula (Sharpless 157) is a bright emission nebula. It lies near the edge of the northern constellation Cassiopeia, bordering on Cepheus. It gets its name from its shape, which is formed by glowing gas and dust, illuminated by a massive, young star called Wolf-Rayet 157. The nebula is a stellar nursery and is sometimes imaged alongside the nearby Bubble Nebula! The emission nebula is 8,800 light-years away from us.
Lyn’s Bright Nebula 537 is the tiny bright area a the image’s centre (LBN537 or Sharpless 157a). Highly ionised oxygen (OIII) and other gases are the principal components of the blue regions in the left left portion of the image.
This is a backyard image, this was my late summer and fall target for when the sky was clear at home, and I accumulated about 70 hours of data and tossed out a lot of bad data and kept the best. Since I image from Bortle 6, gradients were an issue for OIII and I had to clean up the data significantly.
Scope: Astro-Physics Stowaway 92mm f/5.3
Filters: Chroma 3nm SHORGB
Camera: ZWO ASI2600mm-pro
Mount: ZWO AM5
More details and full resolution on https://app.astrobin.com/u/Gmadkat?i=unhuir#gallery