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Old 05-09-2015, 04:05 PM
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RobF (Rob)
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North American Nebula Ha and HaLRGB

3.75 hrs of HaLRGB from astrofest. Mainly 4min RGB subs with just over an hour each of Lum and Ha.
Bit hard to get anything much more than red out of this one, so have put the Ha up too as it shows some more detail. Fair bit of sensor noise in the Ha in particular - think I may have had the camera on fast downloads in hindsight

(Larger versions of HaLRGB and Ha if of interest)
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Click for full-size image (North Am Neb Final small.jpg)
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Click for full-size image (North Am Neb Ha small.jpg)
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  #2  
Old 05-09-2015, 04:14 PM
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Atmos (Colin)
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There really is a lot of whisky detail in the Ha version. Nothing wrong with the HaLRGB one though, very clean
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Old 05-09-2015, 04:21 PM
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RobF (Rob)
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More likely to have been beer related detail than whisky (wispy? ) though in my case
Seriously though, thanks for checking 'em out Colin.
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Old 05-09-2015, 04:34 PM
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ozstronomer (Geoff)
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Nice detail in the Ha version Rob and nicely blended in the LRGB image.

Well done

Cheers Geoff
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Old 05-09-2015, 05:15 PM
Stevec35 (Steve)
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Nice detail for a southern hemisphere north american nebula Rob. It barely clears the northern horizon down here.

Cheers

Steve
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Old 06-09-2015, 09:57 AM
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RobF (Rob)
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Quote:
Originally Posted by ozstronomer View Post
Nice detail in the Ha version Rob and nicely blended in the LRGB image.

Well done

Cheers Geoff
Thanks Geoff. Perhaps a smidge "salmony" - but other than the stars there isn't a lot of colour variation to be guided by. Have always wanted to do a bit wider on this field, so happy to have "explored" a bit more

Quote:
Originally Posted by Stevec35 View Post
Nice detail for a southern hemisphere north american nebula Rob. It barely clears the northern horizon down here.

Cheers

Steve
Thanks for looking Steve - it really is a pleasure to have Cygnus and the Northern Milky way/great rift sweeping past low in the north at Astrofest - that's usually where my chair is pointed for binocs and chilling out between times at the laptop. The lights of Brisbane and the Sunshine coast normally make it pretty hard to image to the north in SE Qld - however the extra 100kms inland at AF really helps out.
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