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All the material on this website is copyrighted to J-P Metsavainio, if not otherwise stated. Any content on this website may not be reproduced without the author’s permission.
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Sunday, March 15, 2009
NGC4565 as aStereo Pair
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Labels:
stereo images
Monday, March 9, 2009
IC443, Reprocessed
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I did this one again.
Previous version(s) and details here:
Labels:
Narrowband color images,
nebula
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:
Labels:
nebula,
publications
Friday, March 6, 2009
The California Nebula, NGC1499
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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.
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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">
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NGC1499 H-alpha light without Stars.
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