Dumbbell Nebula

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mch3898
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Dumbbell Nebula

Post by mch3898 »

Hi,

Took this last night before the clouds roll in before midnight. Did some processing using Nebulosity. The stars seemed too greenish and a bit bloated with halos. Any advise on how to improve? Thanks.

10 5-mins subs of H-A and OIII. Combined H-A and OIII to use as the green channel. Guided with PHD, imaged through WO90 and camera is DSI Pro III mono.

[img][img]http://farm5.static.flickr.com/4136/492 ... 675a6d.jpg[/img] dumbbell nebula M27 by mch3898, on Flickr[/img]
christopher
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Airconvent
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Post by Airconvent »

Good effort. I would prefer to cut the level down a little to bring out more details. [smilie=cute.gif]
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mch3898
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Post by mch3898 »

Airconvent wrote:Good effort. I would prefer to cut the level down a little to bring out more details. [smilie=cute.gif]
@Airconvent
Thanks for the advice. Played around with the image in Photoshop and applied some of Noel's Actions. Thought of getting more image of it tonight but too lazy to set up scope. Ha,ha. How I wish I have a permanent pier setup.


Image
dumbbell nebula 2 by mch3898, on Flickr
christopher
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weixing
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Post by weixing »

Hi,
Very nice and well done!! Prefer the second version.

Have a nice day.
Yang Weixing
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orly_andico
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Post by orly_andico »

hi christopher,

where are you imaging from? do you use a light pollution filter? what is the total exposure time (number of sub-exposures and time per exposure) that you used?

thanks..
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weixing
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Post by weixing »

Hi,
orly_andico wrote:hi christopher,

where are you imaging from? do you use a light pollution filter? what is the total exposure time (number of sub-exposures and time per exposure) that you used?

thanks..
Base on his first post, it should be 10 5-min sub of H-A and OIII. Anyway, I think he didn't use any light pollution filter as he is shooting in H-A and OIII which should not affected by light pollution.

Have a nice day.
Yang Weixing
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Post by orly_andico »

oops sorry i failed to note that info...
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mch3898
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Post by mch3898 »

Thanks guys for looking.

The imaging is done from my front yard in Bishan. Did not use light pollution filter, as Weixing pointed out I used HA and OIII filters. Now I am trying to get hold of a SII filter. So far the narrowband filters worked well with the nebulae. My next target will be the Andromeda Galaxy - don't know if the narrowband will help or hinder.
christopher
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Clifford60
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Post by Clifford60 »

Hi Chris, nice job especially the 2nd image. Keep it coming.
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