Pegasus I Galaxy Cluster
The Pegasus I Galaxy Cluster is a smaller group of galaxies with about 13 members in the constellation of Pegasus near the border to Pisces. The central, elliptical galaxies are NGC 7626 (left) and NGC 7619 (right), both shining at about 11.1 mag. Both galaxies have been discovered by Wilhelm Herschel 1785. The distance to NGC 7619 is about 180 million lightyears, while NGC 7626 is somewhat closer at 140 million lightyears.
North is up in this image.
Details
Telescope:
RCOS 14.5″ f/8
Mount:
ASA DDM85
Camera:
Apogee U16M
Filters:
Astrodon Gen2
Exposure:
LRGB 440:140:160:140 min.
Location:
ROSA Remote Observatories Southern Alps
Author:
© Martin Rusterholz, Astrophotographer


Hello, my name is Martin Rusterholz. I’m a Swiss amateur astrophotographer living near Zurich, the biggest town in Switzerland. My interest in astronomy started when I was 16. At that time, I built my first Newtonian telescope and mount. I studied physics at the Swiss Federal Institute of Technology (ETH) which was the only study including at least some aspects of astronomy and astrophysics.
“Looking at the nights sky is an experience touching everybody deeply inside, something common to all human beings independent to the language spoken by the individuals”.
Deep-sky astrophotography is my passion.