Crescent Nebula

[crimbfighter]

The Crescent Nebula! Imaged over two nights from the back yard. The Crescent Nebula is a emission nebula in the constellation Cygnus. Located 5000 light years from Earth, this nebula is 25 light years across. I was very grateful to have had these two clear nights, back to back!

Hardware:
-Celestron AVX mount
-Scope: Astro-Tech AT130EDT 130mm refractor, 910mm focal length
-Explore Scientific field flattener
-Guide scope: Orion 60mm guide scope w/ Orion Starshoot autoguider
-Pegasus Astro mini powerbox
-Camera: ZWO ASI2600MC Pro
-Optolong L-Extreme dual narrow band filter
-ZWO EAF autofocuser
-Controlled via MeLe Quieter3Q mini PC running Windows

Software:
-Sequence Generator Pro for acquisition
-PHD2 for guiding
-PixInsight and Photoshop for processing

Image:
-102 subrames at 180 seconds each
-gain 100, offset 50, at -10 C
-Calibration frames: 10 flats, 15 dark flats, 20 darks
Total exposure time: 5.1 hours

Here is the imaging rig

 

[terri]

Your images are just awe-inspiring! I marvel at these results each time you share them. To be able to capture a nebula that's 25 light years across from your backyard is amazing! It's beautiful, clear and sharp. Applause!!

 

[crimbfighter]

Your images are just awe-inspiring! I marvel at these results each time you share them. To be able to capture a nebula that's 25 light years across from your backyard is amazing! It's beautiful, clear and sharp. Applause!!

Thank you!

 

[jeffashman]

That's a wonderful image!

 

[wobe]

Awesome image!

 

[crimbfighter]

That's a wonderful image!

Thanks!

 

[crimbfighter]

Awesome image!

Thank you!

 

[PJM]

Yes, awesome.

 

[slat]

Awesome image.