Monday, February 16, 2009
IC443 in HST-palette
Last night was clear for a long time, I used it to shot
IC443 Supernove remnant. This was a first light for my new Observatory,
POD (Personal observatory Dome).
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The O-III signal is weak. After some extreme stretching of the data
there was plenty of it after all. I have not noticed before how far it continues
outside of the Hydrogen alpha area. O-III can be now seen at seven a
clock from the main formation and some faint areas in upper left corner with H-alpha.
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Exposures:
-H-alpha 8x1200s binned 1x1
-S-II 4x600s binned 2x2
-O-III 5x600s binned 2x2
Optics:
Tokina 300mm TX f2.8 @ f2.8
Camera:
QHY9 @ -50 C
Guiding:
Lx200 GPS 12" + LQHY5 and PHD-Guiding
A Starless version to show the nebulosity better.Note an extended Triple Ionized Oxygen outburst in lover left from main feature in middle.
IC443 as a Stereo Pair
Parallel vision version 
Cross vision version - -
IC443 with some volume.
The result is more or less an educational guess about real 3D appearance of this formation. - Two versions, first for Parallel Vision , and the second for Cross Vision method. - The original image and the image information can be found here: http://astroanarchy.blogspot.com/2009/02/ic443-in-hst-palette.html
Sunday, February 15, 2009
4. Universe Today article
A new article by Tammy Plotner in Universe Today: http://www.universetoday.com/2009/02/14/v-is-for-valentine-v838/
At this time I turned the Hubble Space Telescopes image of V838, in Monocerotis, to the spatial format. -
Cross Vision version
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Distances and shapes in 3D-image are visualizations, since we don't have enough information to buil an accurate model. However, the 3D-model of the target is not only a lucky guess as there is many known "anchor points" in the image, witch can be used to estimate the actual forms and the relative distances.
Parallel Vision version
Parallel Vision version
Thursday, February 12, 2009
A POD
As seen in the image, my Observatory locates in very light polluted location.
I bought this observatory dome from Ian - Altair Astro UK.
The POD (Persomnal Observatory Dome) is manufactured by a
Canadian company, SkyShed Obsevatories,
After long thinkikg I ended up to this model.
Mainly becouse there was much good feed back about the system.
the other reason was the reasonable price and easy assembly.
Becouse I'm imaging from midle of the town, the outlook of the tower is important too.
I don't want people to complain about ugly shed in the roof deck in the midle of town.
(It's clearly visible to the opposite park)
Inside the dome, there is a 12" Meade LX200GPS on the 700mm steal pier
and lots of assesories.
Even though, there is plenty of space to walk around the scope.
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The model of the observatory is somewhere between traditional dome and roll off shed.
I have tested it under cloudy sky and it will give a really good protection against winds.
An other great thing is, that now I can just close the dome and leave everythin ready for the next imaging session.
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In this type of observatory, there is a problem with imagingn directly to the Zenith.
I solved this problem by a simple modification.
Instead placing telescope pier off center, I made the whole dome to slide away
to clear the Zenith view.
When access to the Zenith is not needed the dome can be pulled back to maximize
the wind protection.
In this image the slideing system is visible. It's a very simple solution where slitin the plywood works as a guide and everything can be locked down by a wing nut attached to an
anchor bolt.
In near future I will attach six wheels under the dome to make it move smoothly.
In above image is a principle, how standard furniture whells will be placed.
Main dimensions of the POD ( Inches)
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