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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).
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.
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.
-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.

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