Member's Images
Jupiter at opposition
- from CVAS Member Aaron Worley
November 3rd. 2010 - Still no sign of the SEB! And it looks
like Red Jr is moving past the GRS without incident.
Specs: 18" reflector (masked down to 16.5"), 7,700mm fl, Skynyx
mono camera, RGB filters, 1400 stacked frames for each channel.
The Cygnus Wall - by CVAS Member Russ Swaney
This portion of NGC 7000, the North American Nebula, is known as the Cygnus Wall. When taking the whole of the nebula into account, the Cygnus Wall represents the Mexico and Central American components of the continent. Photographically it is clearly the most interesting region of the North American Nebula; a place where the crushing forces of gravity is creating new stars amid the highly contrasted regions of light and dark. Adjacent to the bright Wall can be seen the deep black Gulf of Mexico, its dark lanes and filamentary wisps composed of cold gas and dust; the ingredients of future stars. The Wall is actually an ionization front where UV light from hot, young stars is transforming the cold gas of interstellar space into the ghostly glow of ionized hydrogen that is so readily picked up with modern CCD cameras imaging through a narrowband H-alpha filter.
At a distance of about 1500 light years from Earth, the above view spans a distance of about 15 light years or approximately 90 trillion miles from left to right. That’s about 25,000 times the distance from the Sun to our recently demoted 9 th planet, Pluto!
(thank you to Dave Jurasevich for the above discription)
Field of View: 01°05’ x 00°47’
10" F4 Schmidt-Newtonian, QHY-9 camera, 7nm H-alpha filter, 10 x 6 minutes
