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M27 re-visited

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16 years 3 months ago - 16 years 3 months ago #73040 by JohnMurphy
M27 re-visited was created by JohnMurphy
Saturday night was quite poor seeing wise. A thin layer of wispy cloud reflected back all the light pollution. I gave up on trying to photograph Andromeda in the East, and my Northern sky was just totally orange. In the end I had to resort to the only piece of reasonably semi-transparent sky to my South. I took a total of 40 x 30sec exposures at ISO400, and used 32 to get the following result. The unmodified Canon 350D drops most of the Ha, so there is very little red in M27 - pity.



Canon 350D & C8N-GT 16min total exposure ISO400
Deep Sky Stacker, Iris and Photoshop.
Larger image: farm4.static.flickr.com/3121/2874388020_015778cb90_b.jpg

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos
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Last edit: 16 years 3 months ago by darragh.

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16 years 3 months ago - 16 years 3 months ago #73041 by JohnMurphy
Replied by JohnMurphy on topic Re:M27 re-visited
The image above will not display in the post, the bbcode looks correct - don't know whats going on - are images now not allowed? Pictures on previous posts also seem to have disappeared. Is this something to do with the server outage? Mods?

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos
Last edit: 16 years 3 months ago by JohnMurphy.

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16 years 3 months ago #73049 by Calibos
Replied by Calibos on topic Re:M27 re-visited
Was going to ask the same thing. Offsite images aren't displaying. The code is still in the post but nothing displays. Even when you use this sites image upload service, same thing. Code visible when you click 'edit' post but no image displaying.

BTW, lovely image there John. I love the way imaging shows up the 'Bubble' where its invisible leaving only the dumbell part visible visually. Its like a whole new object.

Keith D.

16" Meade Lightbridge Truss Dobsonian with Servocat Tracking/GOTO
Ethos 3.7sx,6,8,10,13,17,21mm
Nagler 31mm

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16 years 3 months ago #73052 by lunartic_old
Replied by lunartic_old on topic Re:M27 re-visited
The link works fine for me guys.

Nice image John, you managed to capture the dumbbell shape beautifully and the solid arc to the right.

Programming today is a race between software engineers striving to build bigger and better programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning.

Rich Cook

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16 years 3 months ago - 16 years 3 months ago #73056 by Calibos
Replied by Calibos on topic Re:M27 re-visited
The text link works for me too. John edited the post to just a text link after the img bbcode would not display the image within the post.

As an update though, I just found that the thumbnail image links from imageshack work (Thumbnail for forums (2)) None of their other format links work in this site now though.

EG.

[img=http://img261.imageshack.us/img261/1457/loadedcarnj8.th.jpg] [img=http://img261.imageshack.us/images/thpix.gif]

Keith D.

16" Meade Lightbridge Truss Dobsonian with Servocat Tracking/GOTO
Ethos 3.7sx,6,8,10,13,17,21mm
Nagler 31mm
Last edit: 16 years 3 months ago by Calibos.

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16 years 3 months ago #73082 by Seanie_Morris
Replied by Seanie_Morris on topic Re:M27 re-visited
Cracking shot John, well done. I love the lone twinkler near the bottom!

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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