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 Canon EF 400mm f/5.6L: “Hi Thanks 🙂 Good question… On my Star Adventurer (old model) I felt I was at the limit with an…” Aug 18, 20:34

John on Canon EF 400mm f/5.6L: “Hi, great photos! I’ve just bought a canon 400mm f5.6. I have to buy a mount now and I’m wondering…” Aug 17, 22:00

star-watcher on Sky-Watcher Explorer 130PDS: “Hi Thank you. I mounted the guide scope with 2 dove tail bars. It’s a 240mm bar, mounted on the…” Jul 16, 14:18

Moritz on Sky-Watcher Explorer 130PDS: “Hi! Nice blog, I am also having a 130PDS going my way and cannot await it’s arrival 🙂 Can you…” Jul 16, 07:44

star-watcher on 130PDS Improvements: “Yes, but I only use it with the laser collimator.” Jun 29, 12:50

Astrothib on 130PDS Improvements: “Thank you for your reply. Did you end up getting the screw adapter too?” Jun 27, 17:33

Ralf on M 57 Ring Nebula (1mm T2 Ring): “Hi Karol, unfortunately not as I have not yet ordered the spacer rings. I also own the 130PDS and have…” Jun 2, 03:58

star-watcher on M 57 Ring Nebula (1mm T2 Ring): “Hi Ralf I must admit I never tried 0.8mm. I did tests with 0.5mm, then 1mm up to 1.8mm. So…” Jun 1, 21:50

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M51 Whirlpool Galaxy

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