Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/1163466
Дата изменения: Mon Jun 23 15:46:43 2003
Дата индексирования: Tue Dec 25 18:16:56 2007
Кодировка:
Hale-Bopp Polarized
Astronomy Picture of the Day
    


Hale-Bopp Polarized
<< Yesterday 25.04.1997 Tomorrow >>
Hale-Bopp Polarized
Credit: D. McDavid (Limber Obs.)
Explanation: Light polarization is familiar to many outdoor enthusiasts who use polarizing sunglasses to cut the glare of reflected light. These two views of comet Hale-Bopp also demonstrate the effect of polarization. At left is an "ordinary intensity image" of Hale-Bopp's coma taken April 14, while on the right a similar image made with polarizing filters represents the intensity of polarized light. The arcs visible in the polarized view probably correspond to concentrations of ejected cometary dust that produce polarization by reflecting sunlight. Any sort of reflection - from clumps of comet dust or the surface of your favorite lake or ski slope - can polarize light by causing the light waves to vibrate in a plane defined by the reflecting surface.

January
February
March
April
May
June
July
August
September
October
November
December
 < April 1997  >
Mo Tu We Th Fr Sa Su

123456
78910111213
14151617181920
21222324252627
282930



Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Comet Hale-Bopp
Publications with words: Comet Hale-Bopp
See also:
All publications on this topic >>