Credit & Copyright: Marco Lorenzi
(Glittering Lights)
Explanation:
Cosmic dust clouds sprawl across a rich field of stars in
this
sweeping telescopic vista near the northern boundary of
Corona Australis, the Southern Crown.
Probably less than 500 light-years away and
effectively blocking light from
more distant, background stars in the
Milky Way,
the densest part of the dust cloud is about 8 light-years long.
At its tip
(upper right) is a group of lovely reflection nebulae cataloged as
NGC 6726, 6727, 6729, and IC 4812.
A characteristic blue color is produced as light
from hot stars is reflected by
the cosmic dust.
The smaller yellowish nebula (NGC 6729) surrounds
young variable star
R
Coronae Australis.
Magnificent globular star cluster NGC 6723
is toward the upper right corner of the view.
While NGC 6723 appears to be part of the group,
it actually lies nearly 30,000
light-years away,
far beyond the Corona Australis dust clouds.
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Публикации с ключевыми словами:
dust cloud - пылевое облако - отражательные туманности
Публикации со словами: dust cloud - пылевое облако - отражательные туманности | |
См. также:
Все публикации на ту же тему >> |