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M24

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#1 mike73

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Posted 21 July 2012 - 07:30 AM

M24 / Sagittarius Star Cloud / NGC 6603
Constellation - Sagittarius
Open Cluster

Location - Narkurs
Date - 21/7/12
Time - 0015-0115
Seeing (Antoniadi) - II
SQM - 21.45 (NELM) 6.2

Telescope - 12" f/5 dob
EP - x57 26mm T5 Nagler

Sketch materials - White pastels and white ink pen on black paper.

Session notes.
I found M24 quite tricky to find as its quite a large cluster of stars in a very rich star field, I managed to eventually ID it thanks to the dark nebulosity surrounding the emission nebula IC1284.
Quite hard to sketch as the whole area is literally peppered with small stars the brightest stars were probably the three 'inside' IC1284.

Amazing night to be an astronomer though, NELM at Ursa Minor was 6.2 which meant that our southerly sea views of the Milky way were absolutely amazing!

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#2 frank5817

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Posted 21 July 2012 - 08:51 AM

Mike,

A beautiful and detailed sketch of M 24. Great many stars to see there over a large region of sky. Beautiful work and the same for your lunar sketches at your website.

Frank :)

#3 cpr1

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Posted 21 July 2012 - 09:36 AM

That's an amazing sketch!!! As seen from a dark site.

#4 niteskystargazer

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Posted 21 July 2012 - 11:03 AM

Mike,

Very nice sketch of M-24 :).

CS,KLU,

:thanx:,

Tom

#5 mike73

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Posted 21 July 2012 - 11:26 AM

Thanks guys.
Was really good to get back under the stars again as summer over here has been terrible.

Had a really enjoyable sweep around the Sagittarius region with some 10x50's aswell, some real gems up there.

#6 Rutilus

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Posted 21 July 2012 - 03:00 PM

Nice work with M24.

#7 blb

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Posted 21 July 2012 - 11:35 PM

Mike73,
That is a good sketch of IC1284 and the dark nebulosity surrounding the emission nebula IC1284, but M24 is 120'x90' in size, while the field-of-view size of your 26mm Nagler T5 eyepiece is only 84' in diameter with your 12" f/5 dob. That is why you had a hard time locating the star cloud. It is much larger than your field-of-view. This star cloud is much easier to see with binoculars. It stands out in my 10x50 Nikon binoculars with a five degree field-of-view.

#8 phily

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Posted 22 July 2012 - 03:41 PM

Lovely sketch - amazing number of stars.
Phil

#9 JeanB

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Posted 22 July 2012 - 06:58 PM

Mike,

very impressive work, indeed!

Jean

#10 mike73

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Posted 23 July 2012 - 10:47 AM

Mike73,
That is a good sketch of IC1284 and the dark nebulosity surrounding the emission nebula IC1284, but M24 is 120'x90' in size, while the field-of-view size of your 26mm Nagler T5 eyepiece is only 84' in diameter with your 12" f/5 dob. That is why you had a hard time locating the star cloud. It is much larger than your field-of-view. This star cloud is much easier to see with binoculars. It stands out in my 10x50 Nikon binoculars with a five degree field-of-view.

Thankyou Buddy, I appreciate the advice. :)

#11 maroubra_boy

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Posted 29 July 2012 - 06:32 AM

M24 is quite an undertaking. Mind numbingly detailed. Good sketch, Mike.

Alex.






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