Monday, June 30, 2008
Reprocessed material from winter 2007-08
Here in northern Finland we have now a mandatory pause for astro imaging doe the high latitude.
Now is good time to reorganize image archives and improve processing skils.
Few new images was found from my HD, like material for M45 image.
I just place images here with they name. Imaging details can be found from original posts.
All the images are taken with QHY8 camera trough various optical conficurations.
Note! Some fo the images are in high resolution.
Klick for the large image.
M45
Horse Head nebula
M31
North America Nebula
Veil Nebula, Eastern part
Pelican Nebula
M13
M13 + few galaxys
M33
M51
IC 1936
California Nebula
Bubble Nebula 
Tuesday, April 22, 2008
M106, update
Now it's over here, nights are not astronomically dark anymore.
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I managed to shoot 18.04. three more hours for M106.
The outer halo is now somehow more visble but massive light pollution, in my
location, eats out lots of it, IDAS LP filter helpped though..
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I used longer subs, 1200s, for this secon tryout.
9 x 1200s = 3h
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There is older subs, 8x900s from 17.04, combined to this new image,
so there is 5h total exposure time used.
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Same setup, than in previous post.
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I'm very pleased to functionality of SXV-AO active optics unit.
Becouset of AO, many details can be seen in the core of the M106 galaxy.
Processing was difficult doe the gradients coused by LP.
There is some deconvolution and wavelets used in processing
to bring out details more cleary.
Thursday, April 17, 2008
M106, last project of the season.
Nights are getting shorter and shorter up here north.
Lenght of the day is now 15h 30min. Astronomical darkness
last from 23:38 to 02:57 tonight.
One week from now here is no astronomical darkness untill autumn.
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This is the last target for this season. I managed to capture two hours
of data last night. I'll try shoot more data tonight.
M106 (Object number 106 in Messier catalog)
Allso known as NGC 4258.
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M106 is a spiral galaxy located in constellation Canes Venatici.
Distance is about 25 million light-years from my home.
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IMAGING DETAILS
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Optics: Meade LX200 GPS 12" @ f6.3
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Camera: QHY8
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guiding: SXV-AO, active optics unit and LodeStar guider
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Exposures: 8 x 900s+ Flats and Bias frames, no darks total exposure time 2h.
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Filter: IDAS LP
Monday, April 14, 2008
M13 as a Stereo Pair
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Cross vision stereo pair
This is a second version of M13 as a stereo pair image.
This time I used about same method as in Sh2-240 image posted before.
Image is better resolved to the core and stars are more uniformly spreaded
in space.
Image information in original M13 post.
Viewing instructions, look for right side menu.
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Cross vision stereo pair
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