Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/apod/2008-10-27
Дата изменения: Sat Mar 1 00:54:14 2014
Дата индексирования: Sat Mar 1 00:54:14 2014
Кодировка:
Massive Stars in Open Cluster Pismis 24
Astronomy Picture of the Day
    


Massive Stars in Open Cluster Pismis 24
<< Yesterday 26.10.2008 Tomorrow >>
Massive Stars in Open Cluster Pismis 24
Credit & Copyright: NASA, ESA and J. M. Apellюniz (IAA, Spain)
Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just above the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357, including several that appear to be breaking out and illuminating a spectacular cocoon.


January
February
March
April
May
June
July
August
September
October
November
December
 < October 2008  >
Mo Tu We Th Fr Sa Su


12345
6789101112
13141516171819
20212223242526
2728293031

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: massive stars - star formation
Publications with words: massive stars - star formation
See also:
All publications on this topic >>