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NGC6888 Crescent Emission Nebula - Updated

Started by ApophisAstros, Jul 17, 2018, 02:42:17

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ApophisAstros



***** replaced taking onboard comments from colleagues.

Took this over Friday night at Cairds DSC.
Really pleased with this and especially the nebulae around the outside of the Crescent.

24 x Lights
16 x Flats

Right ascension   20h 12m 7s[1]
Declination   +38° 21.3′[1]
Distance   5,000 ly
Apparent magnitude (V)   +7.4
Apparent dimensions (V)   18′ × 12′
Constellation   Cygnus

Imaging telescope or lens:SkyWatcher 120ED Imaging System for Canon DSLR Cameras
Imaging camera:Canon 1000D modified
Mount:Skywatcher EQ6-R PRO Synscan
Guiding cameras:Skywatcher 9x50 Finderscope,  QHYCCD 5L-II MONO
Focal reducer:Skywatcher 0.85x Focal Reducer/Corrector for Evostar-120ED
Software:ADOBE PHOTOSHOP CC,  DeepSkyStacker x64 by Luc Coiffier, Tony Cook, David C. Partridge Deepsky Stacker 4.1 64bit,  Astro Photography Tool
Accessory:QHYCCD PoleMaster
Roger


RedCat51,QHYCCD183,Atik460EX,EQ6-R.Tri-Band OSC,BaaderSII1,25" 4.5nm,Ha3.5nm,Oiii3.5nm.

Carole

Looks darker on here, was brighter and lighter on your laptop at camp.

Carole

The Thing

Looking good Roger. Carole's right, it looks very dark. Maybe a tweak to your PC screen settings is needed?

MarkS

You have some great data there!

As others have said, it is a bit dark on a properly calibrated display.  Brighten it up and it will be an excellent image.

Mark

NoelC

Wow - it's red!
I've been fiddling around trying to capture it (have some un-processed data) but hadn't realised it was pretty much one colour.
Well done Roger, nice image.

Noel
Swapped telescopes for armchair.

Carole

Much better Roger, but perhaps you could mention it is a replacement in the first post as it makes all our comments about it being too dark look odd.

Thanks

Carole

ApophisAstros

Thanks all, isnt imaging amazing!. My friends /family are blown away , especially when i tell them that when the light they are seeing left this target , the human race 4,600 years ago: (2600 BC): Writing is developed in Sumer and Egypt, triggering the beginning of recorded history.
Staggering but that's one of the closest targets... :o :o :o
Roger
RedCat51,QHYCCD183,Atik460EX,EQ6-R.Tri-Band OSC,BaaderSII1,25" 4.5nm,Ha3.5nm,Oiii3.5nm.