Wednesday, December 11, 2013
Veil Nebula as an animation, stars vs starless
One of my experimental images. With suppressed stars, details of the supernova remnant pops up nicely.
Original blog post about the Veil Nebula can be seen HERE
The Veil Nebula
A supernova remnant in constellation Cygnus
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
Thursday, November 7, 2013
The Living Artists Society, Elävien Taiteilijoiden Seura, PoPuP Gallery Opened!
The collective of "Living Artists" introduce and sell their artworks directly in the PoPuP gallery.
Torikatu 18, Oulu
Open every day from 12.00 to 20.00 between 3.11 - 6.12. 2013
Artists:
Anni Arffman - Pia Hentunen - Leena Kangas - Raija Korppila -
Anja Kurikka - Juha Laakso - Christelle Mas - JP Metsävainio -
Moosa Myllykangas - Päivi Pussila - Raimo Törhönen
Prints, photographs, paintings and drawings!
Payment in cash, bill or in multiple payments
Like us in FACEBOOK: https://www.facebook.com/elavattaiteilijat
For a panoramic, zoomable, image, please click here:
Sunday, October 20, 2013
A rarely imaged object, the Sharpless106, Sh2-106
Sh2-106, The Hourglass nebula, an emission nebula in Cygnus
Ra 20h 27m Dec +37° 22′
Image is in Natural color palette from the emission of ionized elements,
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Buy a photographic print from HERE
R=Hydrogen + Sulfur, G=Oxygen and B=Oxygen + Hydrogen.
Buy a photographic print from HERE
There are not too many images around about this little fellow.
Sharpless 106, the Hourglass Nebula, locates in constellation Cygnus approximately at distance of 2000 light years. This is kind of a small object, an apparent size is about four arc minutes (Moon is about 30 arc minutes.) There is a young star at the center of the nebula, S106IR. The solar vind, a radiation pressure, from the young star is responsible for the gas cloud's hourglass like shape.
I think, there is a hint of the outer shock front visible in my image. It locates symmetrically at both side of the central nebula .
Image in mapped colors
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
A light, 33 iterations, deconvolution added at 50% weight in CCDStack2.
A light, 33 iterations, deconvolution added at 50% weight in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Camera, QHY9
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera
Image Scale, ~0,8 arc-seconds/pixel
15 x 1200s exposures for H-alpha emission
3x1200s exposures for the O-III
3x1200 exposures for the S-II
Total 7h of exposures3x1200s exposures for the O-III
3x1200 exposures for the S-II
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