You need to upgrade your Flash Player The theme of this blog is not only and obviously space, but in particular “terrestrial worlds”, places that tend to have surfaces on which one could walk or at least attach oneself to. These places sometimes also have other earth-like familiar features such as atmospheres, weather, volcanos, geysers and perhaps, we are finding, even exotic oceans, rivers or lakes that are not necessarily made of familiar materials we are used to here at home. The second theme is imagery. Occasionally I do some retouching of images when needed if an image is incomplete or sometimes “dirty” or noisy. I will attempt to correct image shortcomings based upon other images or well-accepted presumed attributes. When this is done, notes will be offered as to what was added, why and sometimes how it was done. This way no one should ever wonder if something they are looking at is real or photoshop.

Wanderingspace’s Comet Halley #1

The Planetary Blog today posted an animation of Comet Halley captured by Vega 1 in 1986. The low quality of the Vega images reminded me of how low quality all the mission images to Halley were for their historic encounters. There was one image I found of Halley taken by Giotto that seemed to me to be the best I had ever seen in terms of detail and captured much of the coma that envelopes the nucleus as well. Here is that original image which was found at www.astro.lu.se.

Comet Halley from www.astro.lu.se

The odd thing about it is the rarity of its use anywhere and the site that provided it gives no other detail about it other than “Nucleus of Comet Halley. Giotto fly-by 1986”. So out of curiosity, I decided to do a google image search for “Comet Halley” and turns out that the wallpaper image created by wanderingspace that features this image comes up first!

In the interest of full disclosure, I thought I would post the original to show how it was beautified. Most of the work was really cleaning up the noise and removing artifacts. Much of that noise was in the form of posterization and happens in the coma. So that noise was largely blurred out since the coma would pretty much just be a large blur of white at any rate, but the rate of gradation was still maintained for some level of legitimacy. Color was added to the image last, but that is entirely artistic. That and the upper left corner of the coma which was extended to fill the frame are the only fictional parts of the image.

All in all… it seems to me that when you remove the artifacts, you pretty much have the final image which was used for the wallpaper image. Less manipulation and more “clean-up” which is what I try to do with all images here when needed.

Comet Halley Wallpaper

2 Responses to “Wanderingspace’s Comet Halley #1”

  1. Bill Says:

    Beautiful work. Thanks for posting it, and the backstory.

  2. wanderingspace » Blog Archive » Daily Galaxy Says:

    [...] and people start using these my clean-ups over the ones officially released. Daily Galaxy posted my Comet Halley clean up and I knew I recognized it as my handy work. They most likely got it off Google image [...]

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