NGC 7538 - Emission nebula in Cepheus

Click for Hi-Res Image

NGC 7538 is an emission nebula lying 9,100 light years away in the Perseus arm of the Milky Way, located in the constellation of Cepheus. It is an active star-forming region that is known to contain massive protostars ranging from 20 to 110 times the mass of our Sun. This nebula is often overlooked due to its proximity to the more popular Bubble Nebula.


152mm TMB/LZOS f/8 refractor

Camera: Modified Canon 650D; ISO 1600; raw capture
Mount: iOptron CEM 60
Guiding: Orion SSAG Pro on 300mm f/5.5 lens

20 @ 5 min.


Telescope was focused using the camera's live view and Bahtinov mask. Raw frames were converted in Photoshop using Camera Raw. Subframes were aligned and combined in ImagesPlus. The final image was adjusted in Photoshop. Topaz Detail and DeNoise were applied.


Taken from my backyard observatory in southeastern Minnesota on 8/25-26/16. Temp: 60 F. Seeing was average.

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