Physics:Pickering scale

From HandWiki

The Pickering scale is a scale of rating astronomical seeing, the blurring of images caused by atmospheric turbulence.[1][2] The scale was developed by William H. Pickering (1858–1938) of Harvard College Observatory, using a 5" (13 cm) refractor.[3][4] Seeing of 1 to 3 is considered very poor, 4 to 5 is poor, 6 to 7 is good, and 8 to 10 is excellent.[5][6]

References

  1. ↑ "A Scale of Seeing" (in en-US). 2006-07-17. https://skyandtelescope.org/astronomy-resources/a-scale-of-seeing/. 
  2. ↑ Canada, Environment (2013-04-16). "Astronomy Sky Condition - Environment Canada". https://weather.gc.ca/astro/seeing_e.html. 
  3. ↑ "astronomical seeing, part 2: seeing measurement methods". https://www.handprint.com/ASTRO/seeing2.html. 
  4. ↑ "Courses in Astrophotography". http://www.damianpeach.com/pickering.htm. 
  5. ↑ Wlasuk, Peter (2000) (in en). Observing the Moon. Springer Science & Business Media. ISBN 978-1-85233-193-1. https://books.google.com/books?id=TWtLIOlPwS4C&dq=Pickering+scale&pg=PA123. 
  6. ↑ "RASC Calgary Centre - Atmospheric Seeing". https://calgary.rasc.ca/seeing.htm. 




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