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Old 19-05-2018, 09:41 AM
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Atmos (Colin)
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An open cluster in the constellation Scorpius. There are about 125 stars associated with this cluster. I was actually surprised at the lack of “blue” stars, most them have appeared to either be red or white so I’d assume it is may be 50-200 million years old?

Sky Rover 130mm F/5
Nikon D810
ASA DDM60

5x300s ISO 400

Link to Astrobin
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  #2  
Old 19-05-2018, 11:13 AM
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Andy01 (Andy)
My God it's full of stars

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Nice piece of Modern Art there Colin - looks great!
Reminiscent of a John Coburn style painting.
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Old 19-05-2018, 01:00 PM
willik (Willik)
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Nice image Colin taken with your Sky Rover
Martin
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Old 19-05-2018, 07:54 PM
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And I'm surprised It come up so well in 15 minutes!good work Col
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Old 19-05-2018, 08:45 PM
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multiweb (Marc)
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Very nice. My fav cluster.
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Old 19-05-2018, 10:34 PM
Placidus (Mike and Trish)
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Superbly done. Lovely (and very meaningful) colour in the cluster stars.

I can see the point of placing it in context against the billions and billions, and against the dust from which they came, and I take your point that this particular cluster is not necessarily super-young and super-hot (where the OB cluster stars might be 10,000 times brighter than the background stars), but the cluster stars are still likely hundreds if not thousands of times brighter than the hoi polloi, so I should love to see a second rendition that is processed to show that, and strongly emphasises the cluster stars over the others.

Best,
Mike
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Old 19-05-2018, 11:42 PM
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Atmos (Colin)
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Quote:
Originally Posted by Andy01 View Post
Nice piece of Modern Art there Colin - looks great!
Reminiscent of a John Coburn style painting.
There is quite a bit of noise reduction I've had to do so yeah, it does give that kinda painting look

Quote:
Originally Posted by willik View Post
Nice image Colin taken with your Sky Rover
Martin
Thanks Martin, I am happy with the way the Sky Rover performs with the D810.

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Originally Posted by atalas View Post
And I'm surprised It come up so well in 15 minutes!good work Col
Actually 25 minutes Still pretty noisy!

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Originally Posted by multiweb View Post
Very nice. My fav cluster.
Thanks Marc. One night soon I'll have to get my binoviewers out and do some viewing of these Milky Way open clusters.

Quote:
Originally Posted by Placidus View Post
Superbly done. Lovely (and very meaningful) colour in the cluster stars.

I can see the point of placing it in context against the billions and billions, and against the dust from which they came, and I take your point that this particular cluster is not necessarily super-young and super-hot (where the OB cluster stars might be 10,000 times brighter than the background stars), but the cluster stars are still likely hundreds if not thousands of times brighter than the hoi polloi, so I should love to see a second rendition that is processed to show that, and strongly emphasises the cluster stars over the others.

Best,
Mike
Thanks MnT, when I saw the bayered frames I figured there would be a lot more blue stars but as far as I can tell they're all white and red. I did use the Photometric Colour Calibration in PixInsight and although it makes it green biased in the background the star colours should be accurate.

I did darken the background and try to keep the bright stars bright and they've been ruined a bit hehe

Rework
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  #8  
Old 21-05-2018, 09:39 PM
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RickS (Rick)
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Nicely done, Colin!
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