Measures of Astronomical Seeing
There are three common descriptions of the astronomical seeing conditions at an observatory:
- The FWHM of the seeing disc
- r0 (the size of a typical "lump" of uniform air within the turbulent atmosphere) and t0 (the time-scale over which the changes in the turbulence become significant)
- The CN2 profile
These are described in the sub-sections below:
Read more about this topic: Astronomical Seeing
Famous quotes containing the words measures of and/or measures:
“One encounters very capable fathers abashed by their piano-playing daughters. Three measures of Schumann make them red with embarrassment.”
—Alfred Döblin (1878–1957)
“The reliance on authority measures the decline of religion, the withdrawal of the soul.”
—Ralph Waldo Emerson (1803–1882)