Location / Date:

Eggersdorf, GER / 21. February 2013 & 11./13./16. May 2015

Telescope / Lens:

10“ f/4 TS ONTC Newton

8" f/4 TS Imagin Newton

Mount:

Celestron CGE GPS

Camera:

Atik383L+

Canon 1000 Da

Exposure time:

13x600" Astronomik L

20x30" Astronomik L

9x300" Astronomik RGB

16x600" Canon 1000Da RGB

Total exposure:

Description:

M13 is one of the brightest gobular cluster on northern skies. A view through a telescope reveals hundred of thousands of stars which for a spectacular object. In a distance of 25,000 light years the stars of the cluster crowd to a region with a diameter of 150 light years. In the center of the cluster more than 100 stars can be located in a cube with a feed size of 3 light years.  For comparision the next neighbor of our sun is in a distance of 4 light years. The red and blue giant stars of the cluster show up in yellowish and bluish colours.

Image recording:

Frank Iwaszkiewicz

Image processing: