Tuesday, February 23, 2010
IC 443, as a Stereo Pair
Parallel Vision
Cross 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.
Original Image with details can be found HERE
Much more stereo images can be found HERE
An anaglyph Red/Cyan version.
You'll need Red/Cyan Eyeglasses to be able to see images right. Note, if you have a Red and Green filters, you can use them! Red goes to Left eye.
Monday, February 22, 2010
Planetary Nebula, PK 164+31.1, more lights
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.
At the same time as I was imaging IC 443 in prevoius post, I shot more lights for this dim planetary in Constellation Lynx, since IC 433 was too low after midnight.
Due the low brightness this objet is not commonly imaged, even though it has a largish angular diameter to a planetary nebula. (6'.67" x 6'.67")
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 @ 9Hz
Image Scale, 1,5 arcseconds/pixel
-
Exposures
H-alpha 32x1200s, binned 2x2 and 7x1200s, binned 3x3 = 13h
O-III 2x600s, binned 4x4 and 1x1200s, binned 4x4
S-II 3x600s, binned 4x4 and 1x1200s, binned 4x4
PK 164+31.1 as a Stereo Pair
Parallel Vision
Cross 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.
-
Viewing Instructions
An anaglyph Red/Cyan version.
You'll need Red/Cyan Eyeglasses to be able to see images right. Note, if you have a Red and Green filters, you can use them! Red goes to Left eye.
Original Image with details can be found HERE
Much more stereo images can be found HEREViewing Instructions
An anaglyph Red/Cyan version.
You'll need Red/Cyan Eyeglasses to be able to see images right. Note, if you have a Red and Green filters, you can use them! Red goes to Left eye.
Sunday, February 21, 2010
IC 443, project continues
H-alpha channel
This winter has been very cloudy, up here 65N. Those few clear nights has been very cold, temperatur has dopped to -30 celsius at many nights. I have used every oportunity to shoot various target, even though extereme low temperature does no good to my equipment nor me.
Now I have collected as much H-a light to this Supernova remnant as I could. I have had, ones again, many problems with my scope and other eguipments doe the weather and other various reasons.
In previous post, there is this target with less than two hours of exposure time, now I have shot much more exposures to have higher S/N. This will need even more time, but this season is not long enough for that and I'll like to shoot O-III and S-II channels too to make a narrowband color composition out of them.
Here is a wider field IC 443, from February 2009, imaged with a Tokina AT-X 300mm camera optics:
Here is a wider field IC 443, from February 2009, imaged with a Tokina AT-X 300mm camera optics:
Technical details;
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 7Hz
Image Scale, 0,75 arcseconds/pixel
-
Exposures:
H-alpha 18x1200s, binned 1x1 + 14 x 1200s, binned 2x2, Flats. Bias and Darks
Total exposuretime for H-alpha is about eleven hours.
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