by Pete » Wed Apr 26, 2006 3:51 pm
Guys, jakub is asking about the
RGB spots in the image, not about the cometary fragments!
He is right that these spots are images of stars resulting from sucessive exposures through red, green, and blue filters. Following the APOD links, you can see the same effect in images on
this European Southern Observatory page. "As the telescope was tracking the comet, the stars appear as coloured trails, indicating the order in which the comet was observed in the different filters."
North is up and east is to the left in the pictures, so the stars moved from left to right between exposures, revealing the exposure order to be blue, green, red.
:lol: Guys, jakub is asking about the [i]RGB[/i] spots in the image, not about the cometary fragments!
He is right that these spots are images of stars resulting from sucessive exposures through red, green, and blue filters. Following the APOD links, you can see the same effect in images on [url=http://www.eso.org/outreach/press-rel/pr-2006/phot-15-06.html]this European Southern Observatory page[/url]. "As the telescope was tracking the comet, the stars appear as coloured trails, indicating the order in which the comet was observed in the different filters."
North is up and east is to the left in the pictures, so the stars moved from left to right between exposures, revealing the exposure order to be blue, green, red.