As readers can probably guess by looking at the logo bar on this page, I like colors and spectra. So I loved reading about the color of the universe:
According to Karl Glazebrook & Ivan Baldry, astronomers at Johns Hopkins University, the universe is green. Sooner or later (like in a few billion years), the universe will be red. This is their chart, which shows the color of the universe (the left and right colors are for comparison):
Lest you think the search for the color of the universe was a quest for new and improved paint colors, researchers say, "The cosmic spectrum tells us about the history of star-formation in the Universe." The decimal RGB equivalents are 0.269, 0.388, 0.342.
Glazebrook and Baldry used John Walker's "Colour Rendering of Spectra" work to figure out the RGB equivalents.
I think the universe was a much prettier color about six billion years ago.
Posted by Lee at January 11, 2002 01:21 PMThis is fascinating. I just heard about this on the radio yesterday, and it astounds me that anyone can even begin to divine the colors of the cosmos. Truly incredible. Great topic.
Posted by: Bob Boyd at January 12, 2002 09:51 AM