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Thursday, September 17, 2009

A new project, NGC 6888

I have started a new project with the NGC 6888.
So far there is 4,5h of H-alpha.
Image going to be a three band narrowband image, I have allready 4,5h O-III light for this.
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Camera QHY9,
Optics Meade LX200 GPS 12" forced to @ f4.65
Guiding with SXV-AO active optics unit 11Hz
Filter Baader H-alpha 7nm
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Tuesday, September 15, 2009

M27 as a Stereo Pair

Parallel Vision version Cross Vision version - NOTE! This is a personal vision about forms and shapes, based on some known facts and artistic impression. Wieving instructions can be found from a Right hand side menu.

Sunday, September 13, 2009

M27 in two palettes

Natural colors
In a Hubble palette, S-II=Red, H-a=Green and O-III=Blue -

I was able to shoot data for other channels and more lights for H-alpha, last night.
Same data than H-alpha version in last post.
Additional two hours for H-a, now 4,5h together,
6x600s, binned 2x2, for O-III and 2x600s, binned 3x3, for S-II.
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More information about the target HERE.

O-III channel is very strong. Note. there is interesting looking shadow at three a clock position.
Hint of an other shadow can be seen in a nine a clock position too.

Friday, September 11, 2009

Firs light for the new season

M27, Planetary nebula, was my first target for this new season.
After a long mandatory pause, I feel like a novice.
My location is not good for this object, since it stays under 40 degrees from horizont.
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At last season I shot lots of shor focal lenght images.
this time I like to shoot some smaller targets with longer FL.
I have a wonderfull device from Strarlight Express, SXV-AO, active optics unit.
It makes my LX200 GPS 12" Meade work like a 20.000€ mount!
Guiding error was between 0.1 -0.2 pixels all the time at Focal lenght 1500mm and frequency 13Hz.
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Unfortunatetly I was able to soot only 2,5 h of lights doe the clouds.
I'll shoot more H-alpha and other channels later.
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Outer shell can be seen even now.

A close up

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Details;

-Camera, QHY9

- Optics, Meade LX200 GPS 12" @ f4.65

- Guiding, Lodestar and SXV-AO @ 13Hz

- Exposures, 4x1200s with 7nm H-alpha filter and 7x600 Binned 2x2 . - image scale is 0.8 arcsecond/pixel