Credit & Copyright: Jimmy Walker
Explanation:
This colorful skyscape features the dusty, reddish glow of
Sharpless catalog
emission region
Sh2-155,
the Cave Nebula.
About 2,400 light-years away, the scene lies
along the plane of our Milky Way Galaxy
toward the royal northern constellation
of Cepheus.
Astronomical explorations of the region reveal that it has
formed at the boundary of the massive Cepheus B molecular cloud
and the hot, young, blue stars of the Cepheus OB 3
association.
The bright rim of ionized hydrogen gas is
energized by the radiation from the hot stars, dominated
by the bright blue
O-type star above picture center.
Radiation driven
ionization fronts are likely triggering collapsing cores
and new star formation within.
Appropriately sized for a stellar nursery, the cosmic cave is
over 10 light-years across.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
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:
HII region - molecular cloud - туманность - Области звездообразования - области HII - Молекулярные облака
Публикации со словами: HII region - molecular cloud - туманность - Области звездообразования - области HII - Молекулярные облака | |
См. также:
Все публикации на ту же тему >> |