Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/apod/2004-05-05
Дата изменения: Wed May 5 17:31:11 2004
Дата индексирования: Sat Dec 29 00:45:04 2007
Кодировка:

Поисковые слова: annular solar eclipse
NGC 6302: Big Bright Bug Nebula
Astronomy Picture of the Day
    


NGC 6302: Big Bright Bug Nebula
<< Yesterday 5.05.2004 Tomorrow >>
NGC 6302: Big  Bright  Bug  Nebula
Credit: A. Zijlstra (UMIST) et al., ESA, NASA
Explanation: The bright clusters and nebulae of planet Earth's night sky are often named for flowers or insects, and NGC 6302 is no exception. With an estimated surface temperature of about 250,000 degrees C, the central star of this particular planetary nebula is exceptionally hot though -- shinning brightly in ultraviolet light but hidden from direct view by a dense torus of dust. Above is a dramatically detailed close-up of the dying star's nebula recorded by the Hubble Space Telescope. Cutting across a bright cavity of ionized gas, the dust torus surrounding the central star is in the upper left corner of this view, nearly edge-on to the line-of-sight. Surprisingly, minerals including water ice, along with complex hydrocarbon molecules have been detected in this hot star's dusty cosmic shroud. NGC 6302 lies about 4,000 light-years away in the entomologically correct constellation Scorpius.

January
February
March
April
May
June
July
August
September
October
November
December
 < May 2004  >
Mo Tu We Th Fr Sa Su





12
3456789
10111213141516
17181920212223
24252627282930
31





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: planetary nebula - emission nebula
Publications with words: planetary nebula - emission nebula
See also:
All publications on this topic >>