M51 Whirlpool Galaxy

Date: Mar 17, 2017 Updated: May 4, 2017 Categories: Deep Sky Galaxies Comments:0

M51 Whirlpool Galaxy, 23 million LY estimated distance, 60’000 LY diameter.

Cropped image.

f/5.6

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star-watcher on Ghost Reflections: “Hello Michael, many thanks for the clarification. What I didn’t take into account is that my 130PDS has a bigger…” Nov 15, 19:01

Michael on Ghost Reflections: “Hello, the reason for the “ghost spike” is the secondary spider! What you normally see as bright spikes on stars…” Nov 15, 11:47

star-watcher on 130PDS Improvements: “Thanks for your message 🙂 With the dew shield I use, flats are possible! It’s stiff enough to keep the…” Jul 29, 16:41

Kristof Vandebeek on 130PDS Improvements: “Great tips – thanks for this! I recently got myself a 130 PDS with the Baader MPCC. The dew shield…” Jul 28, 20:22

Dominque G. on Samyang 8mm f3.5: “Thank you for show this! I wanted to give this a try with my 8mm samyang fisheye lens also. Now…” Jun 7, 20:06

star-watcher on My first telescope :-): “Hi Irving Thank you! The time I used the Meade I had absolute no experience. To be honest, I even…” May 30, 20:39

Irving Dunn on My first telescope :-): “Hello Karol I am an expat living in CH for about 50 years. Originally from the SF Calif. area. I…” May 29, 14:22

star-watcher on Sky-Watcher Explorer 130PDS: “Control everything from a shed sounds very comfortable to me! Some day I’ll also use a laptop to control everything…” Apr 28, 23:16

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M51 Whirlpool Galaxy

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