Tuesday, October 5, 2010
M57, the "Ring Nebula" NGC 6882
Narrow band image of the M57 as a bi color, H-alpha & O-III, composition.
Not too commonly imaged outer halo structure can be seen in an image. There is least two layers of it, outer one is faintly seen in this image. There is clear O-III signal too in a first layer of outer halo.
Not too commonly imaged outer halo structure can be seen in an image. There is least two layers of it, outer one is faintly seen in this image. There is clear O-III signal too in a first layer of outer halo.
Ring Nebula, M57, NGC 6822, locates in constellation Lyra, near a very bright star Vega. This planetary nebula lays about 2300 light years away from the Earth and has a diameter of 1,3 light years.
The small angular diameter, 230" x 230", makes this target difficult to image. The central white dwarf of planetary nebula nucleus is seen in an image as a Bluish dim star, visual magnitude is 15,75. Star was visible only in O-III channel.
The small angular diameter, 230" x 230", makes this target difficult to image. The central white dwarf of planetary nebula nucleus is seen in an image as a Bluish dim star, visual magnitude is 15,75. Star was visible only in O-III channel.
A closeup
Technical details:
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 8,5Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 9x1200s, binned 1x1
O-III 3x1200s, binned 1x1
Monday, October 4, 2010
NGC 1365 as a 3D-stereo pair
Parallel vision
Cross vision
Other 3D-formats can be found here:
Original 2D-image and details:
A 3D-transform test:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
Viewing instructions can be found from a Right hand side menu.
Viewing instructions can be found from a Right hand side menu.
NGC 1365 as an anaglyph Red/Cyan 3D
You'll need Red/Cyan Eyeglasses to be able to see this image right.
Note, if you have a Red and Blue filters, you can use them! Red goes to Left eye
Other 3D-formats can be found here:
Original 2D-image and details:
A 3D-transform test:
NOTE! This 3D-study is a personal vision about forms and shapes, based on some known facts and an artistic impression.
NGC 1365, 3D-transformation test
An experiment with the NGC 1365, the "Great Barred Spiral Galaxy". All the stars from our milky way are removed and the original 2D-galaxy image is the projected to a 3D-surface. The resulting 3D-model is then animated to a movie file. The purpose is to show the actual shape of the galaxy, now distorted by a perspective.
Original image and the thechnical details can be found here: http://astroanarchy.blogspot.com/2010/10/ngc-1365-great-barred-spiral-galaxy.html
Subscribe to:
Posts (Atom)
