posted on Apr, 23 2013 @ 02:49 PM
Originally posted by MariaLida
This image was taken in visible light. The blue false color was added to bring out details in the comet structure.
edit on 23-4-2013 by MariaLida because: (no reason given)
Well at least they explicitly stated it. I'll give them credit for that, but I'm not really buying the reasoning. That's a thinly-veiled excuse
to make the image "prettier" for public consumption. If they wanted to bring out faint details in the structure they should have made a negative
version of the image - that's a very old way of presenting faint details in astronomical images, not adding arbitrary false color. Heck, even a
rotational gradient filter would have been a more standard way of bringing out hidden details in the coma's structure (though given the wide time
spacing between exposures made on different orbits that option limits which exposures they can use together without generating false artifacts).
Those methods wouldn't necessarily make the image "pretty" to the general public though, which is why they simply colorized it instead.
I know they're a government agency so they have to play to the public and everything, but I really hate when NASA goes out of its way to try to do
something like this to make their data more in line with what lay people expect. Lay people don't expect that the best astronomical CCDs in the
world are greyscale CCDs and that not every study requires color data. I would rather they just present the data as it is rather than continue to
placate false preconceived notions.