Tuesday, March 9, 2010
M1, the "Crab Nebula", finalized
Nebula in natural color. Narrowband channels are mixed to match visible spectrum. Red=80% H-alpha+20% S-II, Green=O-III and Blue=80% O-III+20% H-alpha to compensate otherwise missing H-beta.
Nebula in HST-palette, Red=S-II, Green=H-a and Blue=O-III
The Crab Nebula supernova remnant locates in constellation Taurus. The actual, bright, supernova was seen by Chinese and Arab astronomers in 1054.
Distance from Earth is about 6500 light years and diameter of the nebula is about 11 light years. Supernova remnant expands at a rate of about 1500 kilometers/second.
Last night I shot S-II channel and, for the first time, broadband luminance to show the broadband component in the nebula. There is a, 30 rounds per second spinning, massive, very magnetic, neutron star in the core of the M 1. The hot plasma strikes existing gas, causing it glow in colors across the electromagnetic spectrum. Without broadband luminance, I can show only a part of the nebulas appearance.
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.
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.
Broadband data is mixed to a narrowband channels in PS.
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 3Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 3Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
O-III 2x1200s binned 2x2
S-II 3x1200s binned 1x1
Broadband luminance with a Hutec LP filter 2x1200s binned 1x1+ 3x600s binned 2x2
Sunday, March 7, 2010
M1, the "Crab nebula"
Nebula in natural color, composed from two narrowband channel, O-III & H-alpha.
This is a difficult target up here in North, due the smallish angular size and the low maximum elevation.
I shot final O-III frames when target was only about 20 degreen above horizont.
Seeing was better than few nights ago but not as good as I was hoping.
The Crab Nebula supernova remnant locates in constellation Taurus. The actual, bright, supernova was seen by Chinese and Arab astronomers in 1054.
Distance from Earth is about 6500 light years and diameter of the nebula is about 11 light years. Supernova remnant expands at a rate of about 1500 kilometers/second.
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 @ 3Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
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 @ 3Hz
Image Scale, 0,75 arcseconds/pixel
Exposures H-alpha 15x1200s, binned 1x1
O-III 2x1200s binned 2x2
I'll shoot the S-II channel and more O-III later, when weather let me do so.
I'll shoot the S-II channel and more O-III later, when weather let me do so.
M1, the "Crab Nebula" as a Stereo Pair
Parallel vision
NOTE! This is a personal vision about forms and shapes, based on some known facts and artistic impression. Viewing instructions can be found from a Right hand side menu.
M1, the "Crab Nebula" as an animated 3D-image
In this blog, there is lots of experimental material. To see my actual astroimages, please, see my Portfolio: http://astroanarchy.zenfolio.com/ Animations are made by creating artificial parallax to an image. Then two images are animated together by using conversion web service, Start3D. There can be some artifacts in images, due the experimental nature of this work! The volumetric models are based on some known facts and an artistic impression. Please, let the images load for few seconds to see them animated!
Original Image with details can be found HERE
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