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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.

Veil Nebula
Supernova remnant in constellation Cygnus

Image is in Natural color palette from the emission of ionized elements, 
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Click for a large image. Buy a photographic print from HERE


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

Click to see in full scale. A detail image of the Veil Nebula to show a resolution. Not a bad one for a 200mm Camera lens. (Canon EF 200mm f1.8, full open)

An experimental starless image of the Veil Nebula SNR

The starless image is unveiling lots of details, otherwise hiding under a dense star field.
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:

Some older detail images from the Veil Nebula

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
S-II and O-III information are from an older image

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