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Thursday, March 26, 2009

Sh2-129 in HST palette

Sh2-129 in HST palette, S-II = Red, H-a = Green and O-III = Blue Sh2-129 in "natural" colors, mixed from narrowband data.
I imaged H-alpha for this at night of 24.03.
It can be seen here:
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Last night I managed to shot S-II and O-III channels. The signal is extremely weak, but real.
I have never seen this target in HST palette and there is generally very few images of Sh2-129.
This is a large nebula, the field of view is about five degrees wide in the image.
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Details;
-Camera, QHY9 - Optics, Canon EF 200mm f1.8 @ 1.8 - Guiding, QHY5 and PHD-guiding - Platform, LX200 GPS 12" - Exposures, 7x1200s with 7nm H-alpha filter, 5x300s O-III Binned 4x4 and 5x300s S-IIBinned 4x4 . Darks, Flats and Bias frames calibrated.

Hs2-129 in HST-palette in a Stereo Pair

Parallel Vision
Cross Vision

- There is very litle information about this object. This Stereo Pair shows how I see its forms. - Viewing istructions, please, look for Right hand side menu.

Sh2-223 & 224

Two, exteremely dim, Supernova remnants in same five degrees field of view.
This target locates in Auriga.
Two hours H-alpha light for this target is way too litle.
There is some very very faint S-II component and maybe a hint of O-III.
A starless version to show the actual nebulosity.
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Details; -Camera, QHY9 - Optics, Canon EF 200mm f1.8 @ 1.8 - Guiding, QHY5 and PHD-guiding - Platform, LX200 GPS 12" - Exposures, 7x1200s with 7nm H-alpha filter, 5x300s O-III Binned 4x4 and 5x300s
S-IIBinned 4x4 . Darks, Flats and Bias frames calibrated.

Tuesday, March 24, 2009

Sh2-129, the Supernova Remnant

False color h-alpha
An unseasonal target from last night.
Sh2-129 is loacated in Cepheus, next to IC1396.
The field of view is about five degrees wide.
At this time of year it's in Northern sky but can be imaged doe my high
latitude location (65N).
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It's a dim Supernova Remnant and there is not too many images about it.
I haven't seen any HST-palette versions of it.
If weather allows, I'll shoot O-III and S-II channels to see if there is any signal.
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This is first image after I fixed the orthogonality problem with my optical configuration.
Now the whole area is flat and stars are pin points from edge to edge.
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Details;
-Camera, QHY9
- Optics, Canon EF 200mm f1.8 @ 1.8
- Guiding, QHY5 and PHD-guiding
- Platform, LX200 GPS 12"
- Exposures, 5x1200s with 7nm H-alpha filter from Baader,
Darks, Flats and Bias frames calibrated.
A Starless version to show the nebulosity.
There is couple of dark nebulae in lower and upper part of the image.