"Hydrogen Volcano" (IC5067 – Pelican Nebula)

 

The Pelican Nnebula, also known as IC5070, lies about 1800 light years away near the constellation Cygnus, and is about about 30 light years across. Radiation from young energetic stars is transforming the Pelican's cold gas to hot gas, and the hot ionized gas glows in the deep red hydrogen-alpha (H-a) wavelength. Monochrome imaging through an H-a filter emphasizes the intricate details in the gas.

This photograph captures a small area known as IC5067 in the "neck" of the pelican. To me, it looks like a volcano spewing fire, lava, and gas into the night; hence the title, "Hydrogen Volcano" (I added the color in Photoshop). Click here for the full image from which this was cropped.


Hydrogen Volcano

Equipment
Celestron 9¼" at f/5.6 on a Celestron CGE equatorial mount
SBIG ST-8XM camera
Optec IFW filter wheel with Astrodon TruBalance LRGB filters
Optec TCF-S focuser
Optec Pyxis camera rotator
Imaging and autoguiding with MaxIm DL 4.07
Exposure
Luminance   2.5 hours (10 x 15 min.) binned 1x1 (2 @ -15°C, 8 @ -10°C;)
Matching-temperature darks applied to each set of images.
Processing Dark and flat processing in CCDSoft
Sigma-reject comgine
Levels and curves, Neat Image, highpass filter in Photoshop CS
Color-fill layer in Photoshop CS.
Date and Location 24 June 2005 (2 images @ -15°C in early morning; 8 images @ -10°C next evening)
Montpelier, VA    N 37° 49' 12", W 77° 42' 06"