M101 Galaxy, a LRGB picture, ~13 hours exposure. (Niels V. Christensen)

M101 Galaxy, a LRGB picture, ~13 hours exposure.

The raw data/subs were taken during April-May-2016, in total ~ 13 hours exposure.

As the 16" SCT FOV is less than the whole M101 galaxy, the shown picture consist of a 2*2+1 matrix of raw data. The color data for the M101 also come from my WO FLT-110 / Canon 60Da parallel astro-setup.

Edit info.:

When the picture was "in Progress" I published an intermidiate version here:

http://www.skyandtelescope.com/online-gallery/m101-galaxy-total-exposure-10hours/

Detailed exposure info. is mentioned here

https://astrob.in/244887/D/

The "full version" is also shown here:

http://www.skyandtelescope.com/online-gallery/m101-galaxy-lrgb-picture-13-hours-exposure/

A lot more info. about this picture can be found on this Danish astro forum,

http://www.forum.2astro.dk/forum/topic.asp?TOPIC_ID=8262

My home build observatory is placed in my front yard/in the "red light" polution zone, have a look here,

Red Zone

Kind regards Niels

Original
Final
B

B

Description: Re-processed in April-2017. Kind regards Niels

Uploaded: ...

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