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Messier 23

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#1 JayinUT


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Posted 26 July 2009 - 01:14 AM

This is a digital image done in GIMP based on a sketch completed at the scope on July 21st, 2009, beginning at 11:40p.m using my XT10 and a 21mm Stratus at 57x.

When I first examined this I really questioned whether I wanted to sketch this open cluster. I decided to try and tackle it and just sketch what I could see. I had done M25 and several other sketches of other open clusters lately since I think they are often ignored this time of the year. I've been recording my observations on a digital recorder and uploading them to iTunes and am going to add a new dimension to my blog/coming Web Page. I am going to post up my audio observations of the items I am sketching. For me I find by keeping a written record and an audio one it helps me to remember what I am seeing as I am seeing it and I can return to listen to the observation again while I re-create it digitally.

The cluster is 2150 ly away from us and is estimated at 27 arc seconds across or 15 to 20 ly across. It is a rich cluster and between 129 to 147 members have been counted depending on which observation you go by. Finally it is estimated at 220 million to 300 million years old.

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#2 WadeVC



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Posted 26 July 2009 - 03:59 AM


Looking good buddy...keep it up and keep posting! :goodjob:

#3 CarlosEH


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Posted 26 July 2009 - 11:28 AM


An excellent observation of M23. You have done a nice job recording the open cluster using Gimp. Thank you for sharing it with us all.


#4 rodelaet



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Posted 30 July 2009 - 03:34 PM


That is an excellent study of a great cluster! :bow:

#5 frank5817



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Posted 31 July 2009 - 10:50 AM

Hi Jay,

Sketch of M23 looks real goooooooood buddy. The strings of stars here look very familiar. I think you nailed it beautifully. :waytogo:

Frank :)

#6 cildarith



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Posted 31 July 2009 - 11:12 AM

Very nice sketch of M23, Jay! :bow:

#7 JayinUT


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Posted 31 July 2009 - 12:00 PM

Wade, Carlos, Rony, Frank and Eric,

Thanks for your kind comments. I am enjoying a lot of contributions by everyone of late and hope the weather holds up.

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