Telescope resolution

Discussion in 'Astronomy, Exobiology, & Cosmology' started by timojin, Jan 25, 2017.

  1. exchemist Valued Senior Member

    No. This is about IR mapping of the planetary surface.

    However it is quite an interesting technique. I found this link, which explains in more detail:

    They look at the IR emission spectrum from individual small areas of the surface and subtract from it the black body radiation envelope appropriate for that temperature. What remains is a characteristic difference spectrum for the minerals exposed at the surface, at that location. It's a clever way of doing geology from orbit!

    But it won't have anything to do with the IR emissions of the whole planet into space, still less anything to do with radio waves.
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  3. Boris2 Valued Senior Member


    Just the abstract, gotta pay for the paper, but it gives you the idea.
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  5. paddoboy Valued Senior Member

    I was unaware of the definition of the word, "eponymously" obviously.
    That has now been rectified.

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  7. DaveC426913 Valued Senior Member

    R.E.M. put out an album entitled Eponymous. That's where I learned it, and decided to incorporate it into my vocabulary.
    paddoboy likes this.
  8. timojin Valued Senior Member

    Are the mentioned signals reflection or emission example Uranus is at a large distance from Arecibo and in between can be interference, or if the signal is reflectance there will be only certain periods that a signal would be obtained

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