Great Pegasus Cluster (M15)
Globular cluster Messier 15 (M15, NGC 7078) is among the more conspicious of these great stellar swarms. At a distance of about 33’600 light years, its diameter of 18′ corresponds of a linear extension of about 175 light years and a total visual brightness of 6.2 mag. M15 is perhaps the densest of all globular star clusters in our Milky Way. Many scientists believe that a black-hole resides in the center of the cluster.
[description from wikipedia]
Details
Telescope:
RCOS 14.5″ f/8
Mount:
ASA DDM85
Camera:
Apogee U16M
Filters:
Astrodon Gen2
Exposure:
LRBG 220:50:40:40 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. 