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Messier 71 - Globular or Open Cluster??

  • Keith g
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17 years 3 months ago #51377 by Keith g
Hi all, I've always enjoyed viewing this lovely cluster in Sagitta, right in the middle of the summer milkyway, so now that my cg5 goto mount is working again, I decided to give it a go last night using my C80ED and the Canon 400D. This is a stack of 20 75 second exposures and 15 darks at ISO 1600. Even though the moon was bright, it came out well.

I really only shot this as to come to a conclusion myself whether it is a globular or open cluster. Officially, the IAU clasified this as a globular

YOU DECIDE.......?????
Keith..

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  • carlobeirnes
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17 years 3 months ago #51389 by carlobeirnes
Replied by carlobeirnes on topic Re: Messier 71 - Globular or Open Cluster??
Very nice keith

Carl O’Beirnes,
Scopes and Space Ltd,
Unit A8 Airside Enterprise Centre,
Swords, Co Dublin,
Ireland.
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17 years 3 months ago #51391 by dave_lillis
Replied by dave_lillis on topic Re: Messier 71 - Globular or Open Cluster??
Nice globular cluster you got there, or maybe it's a closed cluster, not sure. :wink: :lol:

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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17 years 3 months ago #51399 by Gary Clarke
Replied by Gary Clarke on topic Re: Messier 71 - Globular or Open Cluster??
Nice image Keith, great to see you got your mount working again, now there is no stoping you. As for the cluster its a difficult one to decide

Regards,

Gary.
Clonee Observatory D.15.

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17 years 3 months ago #51408 by michaeloconnell
Replied by michaeloconnell on topic Re: Messier 71 - Globular or Open Cluster??
Cluster's last stand, perhaps?

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17 years 3 months ago #51410 by phoenix
Replied by phoenix on topic Re: Messier 71 - Globular or Open Cluster??
Nice even background and good star colour in that image.

Here is the SEDS page. Even the pro's can't come to a sound answer

www.seds.org/messier/m/m071.html

Kieran
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/

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