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Sunday, March 29, 2009
IC1805 core as a Stereo Pair.

I shot the original 2D-image at January 2008.
Image can be seen in this post:
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Wider view shows the whole nebulosity complex.
This object can be seen in a Right at very center of the Heart shaped Nebula.
Labels:
stereo images
Saturday, March 28, 2009
Sh2-223, 224 and 225


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This was the moust difficult target.
The image spans about five degrees horizontaly, there is two
old Supernova remnants in the same field of view!
Extremely low surfage brightness and large angular size makes
this trio from the Sharpless catalog a very challenging to shoot.
There is a very dense Star field. Note. the "noise" in the image is
not a noise but Stars!
I think, this is more difficult than a SH2-240.
It can be seen in my older post, here:
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I spend three nights for H-alpha and here is the result.
I think, this must be the firs NB color composition from this target?
Least I wasn't able to find any.
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Total exposure time for H-alpha channe is 11h.
Taken with very fast optical configuration @ f1.8.
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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 and 13x2400s, 5x300s O-III Binned 4x4 and 5x300s. S-IIBinned 4x4 . Darks, Flats and Bias frames calibrated.
Total exposure time for H-alpha line is 11h!
Friday, March 27, 2009
NGC4565


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here is my previous image of the same galaxy, taken with a longer FL instrument.
Labels:
Canon 200mm f1.8 images,
galaxy images
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