Tuesday, December 10, 2013
Veil Nebula unveiled
The exhibition is over, lots of visitors and many photographic prints has been sold.
Many thanks to all visitors and buyers!
I have some new material waiting for publishing, even though the weather has been really bad up here.
I had some technical problems with my longer focal length instrumentation and I had to move back to use my wide field tools. Veil Nebula in this post has been shot with the Canon EF 200mm f1.8 camera optics.
There is now 13h h-alpha light, collected from years 2008, 2012 and 2013.
There is now 13h h-alpha light, collected from years 2008, 2012 and 2013.
Veil Nebula
Supernova remnant in constellation Cygnus
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Click for a large image. Buy a photographic print from HERE
Click for a large image. Buy a photographic print from HERE
Info
Veil Nebula is a cloud of ionized gas and dust, leftovers from an exploded star. The star went off some 5000-8000 years ago at distance of about 1470 light years. This, relatively faint target, is difficult to image due to the large angular diameter, about three degrees, and a dense star field.
This is a second version of this object, older version can be seen Here.
Veil Nebula in mapped colors
Mapped colors from the emission of ionized elements,
R=Sulfur, G=Hydrogen and B=Oxygen.
Buy a photographic print from HERE
A detail image, in original 1:1 resolution
An experimental starless image of the Veil Nebula SNR
Buy a photographic print from HERE
A 3D-study of the Veil nebula SNR
This is a looped video, click to start and stop. Original movie is in HD1080p resolution.
Original blog post about the 3D-study and more animations behind this link:
http://astroanarchy.blogspot.fi/2013/02/the-veil-nebula-experimental-3d-study.html
Some older detail images from the Veil Nebula
- At upper left, IC 1340 with Meade LX200 12": http://astroanarchy.blogspot.fi/2012/10/ic-1340-project-finalized.html
- Upper right, the Pickering's Triangle with Meade LX200 12": http://www.astroanarchy.blogspot.fi/2012/11/pickerings-triangle-project-finalized.html
- Bottom left, Eastern part of the veil. Shot at 2007 with 80mm refractor.
- Bottom middle, the veil nebula wide field with a Tokina AT-X 300mm f2.8 camera lens: http://astroanarchy.blogspot.fi/2012/03/veil-nebula-reprocessed-with-some-new.html
- Bottom right, the Witch's Broom with Meade LX200 12": http://astroanarchy.blogspot.fi/2012/11/witchs-broom-nebula.html
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Levels, curves and color combine in PS CS3.
Optics, Canon EF 200mm camera lens at f1.8
Camera, QHY9
Guiding, Meade LX200 GPS 12" and a Lodestar guider
Image Scale, ~5 arcseconds/pixel
Exposures for H-alpha:
7x1200s, from 2008
13x1200 from 2012
19x1200 from this Autumn season 2013
Total 39x1200s = 13h
7x1200s, from 2008
13x1200 from 2012
19x1200 from this Autumn season 2013
Total 39x1200s = 13h
S-II and O-III information are from an older image
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