Credit & Copyright: ESA/Hubble and
NASA
Explanation:
Beautiful island universe
Messier
94 lies
a mere 15 million light-years
distant in the northern constellation of the hunting dogs,
Canes
Venatici.
A popular target for earth-based astronomers,
the face-on spiral galaxy is about 30,000 light-years across,
with spiral arms sweeping through the
outskirts of its broad disk.
But this Hubble
Space Telescope field of view spans about
7,000 light-years or so across M94's central region.
The sharp close-up examines the galaxy's compact,
bright nucleus and prominent inner dust lanes,
surrounded by a remarkable bluish ring of young,
massive stars.
The massive stars in the ring
appear
to be less than about 10 million
years old, indicating the galaxy experienced a corresponding well-defined
era of rapid star formation.
As a result, while the small, bright nucleus is typical of the
Seyfert
class of active galaxies, M94 is also known as a
starburst galaxy.
Because M94 is relatively nearby, astronomers can explore
in detail
reasons for the galaxy's burst of star formation.
Today's Coverage:
Moon
Landing
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 2025 |
Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
|
Publikacii s klyuchevymi slovami:
M 94 - starburst galaxy - vspyshka zvezdoobrazovaniya
Publikacii so slovami: M 94 - starburst galaxy - vspyshka zvezdoobrazovaniya | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> | |
