M101 Pin­wheel Galaxy in Ursa Major

M101 Pinwheel Galaxy Astrophotography Martin Rusterholz

The Pin­wheel Galaxy (also known as Messi­er 101, M101 or NGC 5457) is a face-on spir­al galaxy dis­tanced 21 mil­lion light-years away from earth in the con­stel­la­tion Ursa Major. First dis­covered by Pierre Méchain on March 27, 1781, it was com­mu­nic­ated to Charles Messi­er who veri­fied its pos­i­tion for inclu­sion in the Messi­er Cata­logue as one of its final entries.

Details

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RCOS 14.5” f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
LRGB 600:180:180:160 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart M101

M101 Skychart Martin Rustholz

Image cre­ated by Skychart

About Me

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.

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