Monday, October 26, 2015

seeing

Astronomical seeing refers to the blurring and twinkling of astronomical objects such as stars caused by turbulent mixing in the Earth's atmosphere varying the optical refractive index. The astronomical seeing conditions on a given night at a given location describe how much the Earth's atmosphere perturbs the images of stars as seen through a telescope.
at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

talk nineteen to the dozen

  to speak rapidly and without stopping

  • abstemious
    Marked by, or spent in, abstinence ; as, an abstemious life.
  • Nureongi
    Nureongi (누렁이) and Hwangu (황구; 黃狗) are Korean terms meaning "Yellow Dog" used to refer to tannish mongrel or landrace of dog in...
  • acrolect - mesolect - basilect
    Three portions of the post-creole continuum : acrolect ( linguistics ) The variety of speech that is considered the standard form. m...