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elpajare

NGC 6720/ MESSIER 57

5 posts in this topic

This spring nebula has always reminded me of a slice of an exotic fruit in a soda to help pass the thirst during the coming summer.

As an appetizer.....

 

Shot with a newton f/4 + Infinity at 15 expo./ 12seconds each.

M 57 Y NGC 6720 PN LYRA 15X12 S3,1 22º M0 GIMP.jpg

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200mm F4   or  250mm F4    ??......   you have caught a good number of stars and a range of magnitudes for a 12 sec exposure.   Nice one.

Sean.

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Its a 200/800 skywatcher Black Diamond dual speed.

 

Thanks for your comments!

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Posted (edited)

Interesting to compare to a zoomed Astrotoaster image 180s(6 x 30s) stack of iso400 via small f5 bresser refractor(127/635) using canon (unmod) 100d dslr with no post processing excluding zoom in photoshop - more stars and better colour (especially red)  in your picture.

 

m57-ex 180s iso400 stacked astrotoaster.png

Edited by stash_old
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I think the difference is on the scope aperture and camera type.  

My scope is a Newton  8"  f/4 and Infinity is a specialized camera with a very good software with which it is possible to control live view in detail.

 

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