NGC 7640 in Andromeda
NGC 7640 is a mag 11.5 bright SBc-type galaxy in the constellation of Andromeda with an apparent size of 10’x2.2′. The shape of the spiral arms clearly shows the classification of SB, but it appers to have undergone gravitational interaction in the past. The distance is estimated to be around 28 million lightyears, while the physical diameter is 90’000 lightyears.
Details
Telescope:
RCOS 14.5″ f/8
Mount:
ASA DDM85
Camera:
Apogee U16M
Filters:
Astrodon Gen2
Exposure:
LRGB 740:200:220:180 min.
Location:
ROSA Remote Observatories Southern Alps
Author:
© Martin Rusterholz, Astrophotographer
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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.