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Monday, March 9, 2009

IC443, Reprocessed


I did this one again.
Previous version(s) and details here:

Saturday, March 7, 2009

2009 Imaging Competition JANUARY WINNER

My two panel mosaic image of Rosette and Cone Nebula is a January winner
in Northern Galactic, an international astronomy community for professional and advanced astronomers, scientists, astrophotographers and science writers.
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The image is now in the running for the 2009 Grand Prize.
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Here is the image:

Details and more versions here:

Friday, March 6, 2009

The California Nebula, NGC1499


NGC1499 in HST-palette
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At night of 25.02.2009 I shot more lights for NGC1499, the California Nebula,
to see how deep I'm able to go.
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Original narrowband color image can be seen here:
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I borrowed O-III and S-II cahnnels from there and added them to new H-a channel to
boost it with, otherwise missing, wavelenghts.
After that I used this O-III and S-II boosted H-a image as a new luminance over the the
original.
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Original data can be found behind the link, new data is:
13x600s8, Binned down 2x2 + 4x1200s, Binned 1x1 with Canon EF 200mm @f1.8.

NGC1499 in "natural" colors, mixed from H-a, O-III and S-II


I haven't been able to find any information about this formation.
It looks to me like an old Planetary Nebula?
If you have any information about this, please, leave a message.
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I add here a small animation about processing steps of the O-III channel.
Information in this channel is very dim and a special threadment is needed to reveal it.
In attached GIF-animation normally stretched O-III image is not showing any obivious shades.
When stars are removed image can be stretched very differently, since I don't have to
care about bloating stars.
(In narrowband imaging Stars, as they are broadband targets and contanes no relevant information, can be removed.)
In a final stage of processing all stras are returned, with a special tecnique, with no data lost.
The animation is a gropped from midle of the O-III image.
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Klick to image to see an animation, note. large size, 3.2MB.
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NGC1499 in HST-palette without Stars to better show the actual nebulosity.
href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBMaCfAB55BjeLhyphenhyphenUbxhbfu84oyDmE43MvnEAk7Bp6C_xRZRNyoQXMNU6miWsptxYHYe_E_O99tioUWadI9naFkyJH8ZDteFDEnkpOyB8uB0yoYT5LP3usMuRt5v7JiwMDjo8GQGE00VI/s1600-h/NGC1499_H-alpha_NoStarsMEDIUM.jpg">

NGC1499 H-alpha light without Stars.

Wednesday, March 4, 2009

Virgo Cluster of Galaxies, second edition

In this image of the Virgo Galaxy Cluster, all the stars are deleted.
Only Galaxies are visible.
Picture gives an idea, what we might see, if we look this Galaxy Cluster outside of our Galaxy!
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Here is a blink animation, please, klick the image to see it.