Adding a large refractor to the collection. Looks like a good performer.
Rick
On 4/8/2014 2:37 PM, Stefan Lilge wrote:
This is sort of “first light” for my new Skywatcher Esprit 150ED scope.
Actually it is second light, but the first night had such bad seeing
that I could not get any useful data.
The sky was very hazy, probably because of sand from the Sahara desert
that was blown over from Africa.
M13 seemed a good choice under these conditions.
Taken from the middle of Berlin with a Skywatcher Esprit 150ED at f/7 on
a G11 mount, Trius SX694 camera, 12x2min L and 11x2min RGB each.
http://ccd-astronomy.de/temp9/M13coloursharpgut.jpg
Stefan
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