"Invisible Galaxy Centaurus A" --Would Appear 20 Times Size of Full Moon If Human Eyes Could See It (Weekend Feature)
If our eyes could see radio waves, the nearby galaxy Centaurus A would be one of the biggest and brightest objects in the sky, nearly 20 times the apparent size of a full moon. But our eyes can only see wavelengths between 0.00004 and 0.00008 of a centimeter (where, not surprisingly, the Sun and stars emit most of their energy). The human visual spectrum from violet to red, notes astronomer, James Kaler, is but one octave on an imaginary electromagnetic piano with a keyboard hundreds of kilometers long.
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Fucking measly human abilities…
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Amateur astronomer, citizen scientist, musician, graphic/website designer, fully qualified geek, Linux user and supporter of The Zooniverse!
This blog is mostly about space... and other things.
