Credit & Copyright: Don Goldman
Explanation:
Driven
by the explosion of a massive star,
supernova remnant Puppis A is blasting into the
surrounding interstellar medium about 7,000 light-years away.
At that distance,
this
colorful telescopic field based on broadband and narrowband
optical image data is about 60 light-years across.
As the supernova remnant (upper right) expands into its
clumpy, non-uniform surroundings, shocked filaments
of oxygen atoms glow in green-blue hues.
Hydrogen and nitrogen are in red.
Light from the initial supernova itself, triggered by
the collapse of the massive
star's core, would have reached
Earth about 3,700 years ago.
The Puppis A remnant is actually seen through
outlying emission from the closer but more ancient
Vela supernova remnant, near the
crowded plane of our Milky Way galaxy.
Still glowing across the electromagnetic spectrum
Puppis A remains one of the brightest sources
in the X-ray sky.
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:
supernova remnant - остаток Сверхновой
Публикации со словами: supernova remnant - остаток Сверхновой | |
См. также:
Все публикации на ту же тему >> |