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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.


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
Monday, March 2, 2009
Sh2-240 as Stereo Pair
Ones more I have redone this Supernova remnant Stereo precentation. I wasn't happy with it before, now it looks some how better, I think.
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Here is the original APOD image from Jan. 17 2009:
and here the APOD page:
Labels:
stereo images
6. Universe Today article
This time Tammy Plotner used a Comet Lulin image taken and Volumized by me.
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You can read the article from here:
Labels:
publications,
stereo images
Virgo Cluster of Galaxies

At the same nigh, than previous Sharpless target, I shot this beautiful Galaxy Cluster in Virgo. I needed a data for calibrating my QHY9 and Canon 200mm EF f1.8 optics orthogonality. I didn't wait much about image, since 200mm lens has litle bit too wide for galaxys. After all, it turned to be a nice image, so I post it here too.
Labels:
Canon 200mm f1.8 images,
galaxy images
Sunday, March 1, 2009
Virgo Cluster as a Stereo Pair


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Labels:
stereo images
Two ways to end a life in HST-palette

In this rare image two Stars has ended they lifes. Right one is an old, very dim and large, Planetary Nebula and the Left one is an extremely dim Supernova remnant.
The North is Up and the field of view is about 5,5 degrees horizontaly.
I have seen very few images of eather of them, and never seen it as a three colour narrow band.
Objects in the image are from the Sharples Catalog.
Upper one is Sh2-216 and the lower one Sh2-221.
There is other smaler Sh2-objects there, Sh2-217 and Sh2-219,
they are located in Auriga.

Natural color composition, mixed from H-a, O-III and S-II channels.

Since I haven't seen this ever in NB colors, I added an image about content of the channels.
A special technique is used to dig out a very faint information.
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IMAGING DATA:
Camera, QHY9
Optics, Canon EF 200mm f1.8 @ f1.8
Guiding, QHY5 + PHD-guiding
Platform, Meade LX200 GPS 12"
Exposures:
H-a = 9x1200s
S-II = 14x300s binned 3x3
O-III = 11x300s binned 3x3

If someone elese has observed this older, double ionized Sulfur, outburst,
please inform me.
Thursday, February 26, 2009
Cone and Rosette Nebula mosaic!

Cone and Rosette in HST-palette. Image spans horizontally 10 degrees.

Same image with reduced stars to show the nebulosity better.
Area in "natural" colors. Mixed from narrowband data; Red=70%H-a + 30%S-II, Green=100%=-III and Blue=85%O-III+15%H-a - -

At night of 24.02. I shot this data before a Comet Lulin in previous post. I allway wanted to show this interesting area between Rosette and Cone. As can be seen in the image, they both are part of same large nebula complex.

A horizontal versions Are for your viewing pleasure. Here is a real postion in the Sky, North up.
This area is sometimes called as a "Christmas Tree Cluster". Now I can see why! With current equipments I can have both, highresolution and wide field. - - IMAGING DATA: Camera QHY9 Guiding QHY5 Optics Canon EF 200mm f1.8 lens Platform LX200 GPS 12" - Exposures for Cone Nebula part: H-a = 2 x 1200s S-II = 2 x 600s O-II = 2 x 600s - Exposures for Rosette Nebula part: H-a = 3 x 1200s S-II = 2 x 600s O-III = 2 x 600s - Final image is 7000 x 2500 pixels and the resolution is 5,5 pixels/arc second

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