Colors in Planetary Imaging

摘要

WHEN LOOKING AT AN image of, say, a galaxy, have you ever wondered to yourself, "Is this real?" or maybe, "Is this what it really looks like?" The first question is easy to answer. Yes, astronomy images are real. Unless it is "space art," these images are of real objects in outer space. They aren't creations of a graphic artist's imagination. But answering the second question is not as simple. How a telescope "sees" is radically different from how our eyes see. Telescopes give us super-human vision. In most cases, they literally make the invisible visible.