Sonstraal

'n Sonstraal, in meteorologiese optika, is 'n straal sonlig wat uit die posisie van die Son uitstraal. Skynend deur openinge in wolke of tussen ander voorwerpe soos berge en geboue, is hierdie strale van deeltjie-verstrooide sonlig in wese parallelle skagte geskei deur donkerder skadu volumes. Hul oënskynlike konvergensie in die lug is 'n visuele illusie vanuit lineêre perspektief. Dieselfde illusie veroorsaak die oënskynlike konvergensie van parallelle lyne op 'n lang reguit pad of gang by 'n verre verdwynpunt. Die verstrooiende deeltjies wat sonlig sigbaar maak, kan lugmolekules of deeltjies wees.[1][2][3]

Sonstrale in Nevada tydens 'n sonsondergang.

Verwysings

Lynch, D. K.; Livingston, W. (1995). Color and Light in Nature. Cambridge: Cambridge University Press. ISBN 978-0-521-46836-7.
Naylor, John (2002). Out of the Blue: A 24-Hour Skywatcher's Guide. Cambridge University Press. pp. 77–79. ISBN 978-0-521-80925-2.
Edens, Harald. "Crepuscular rays". Weather Photography lightning, clouds, atmospheric optics & astronomy. Besoek op 1 November 2011.

Eksterne skakels

http://www.demark.org/essays/CrepuscularRays.html

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[Lynch&1995-1] Lynch, D. K.; Livingston, W. (1995). Color and Light in Nature. Cambridge: Cambridge University Press. ISBN 978-0-521-46836-7.

[2] Naylor, John (2002). Out of the Blue: A 24-Hour Skywatcher's Guide. Cambridge University Press. pp. 77–79. ISBN 978-0-521-80925-2.

[3] Edens, Harald. "Crepuscular rays". Weather Photography lightning, clouds, atmospheric optics & astronomy. Besoek op 1 November 2011.