a. v. ley
Stephan's Quintet
Stephan’s Quintet, captured at GNTO on 10-22-2017. This, the first compact galaxy group to be observed, was discovered by Édouard Stephan in 1877. Four of the five are in a physical association and will likely merge. NGC 7320, the elliptical galaxy with two stars in it’s foreground, is not physically associated with the group and is “only” ~ 39 million light years distant, while the rest of the group is about 210 to 340 million light years away in the direction of the constellation Pegasus.
I used a C11 HD with f/7 focal reducer on a Losmandy G11 mount. The camera was an SBIG ST4000XCM. Twenty-four 10’ subframes were captured. Twenty-one of these were combined and processed using PixInsight. Final processing was done using Photoshop CS2.
Stephan's Quintet
Stephan’s Quintet, captured at GNTO on 10-22-2017. This, the first compact galaxy group to be observed, was discovered by Édouard Stephan in 1877. Four of the five are in a physical association and will likely merge. NGC 7320, the elliptical galaxy with two stars in it’s foreground, is not physically associated with the group and is “only” ~ 39 million light years distant, while the rest of the group is about 210 to 340 million light years away in the direction of the constellation Pegasus.
I used a C11 HD with f/7 focal reducer on a Losmandy G11 mount. The camera was an SBIG ST4000XCM. Twenty-four 10’ subframes were captured. Twenty-one of these were combined and processed using PixInsight. Final processing was done using Photoshop CS2.