Credit & Copyright: NASA,
NOAO,
ESA,
Hubble Helix Nebula Team,
M. Meixner
(STScI),
& T. A. Rector
(NRAO)
Explanation:
Will our
Sun
look like this one day?
The Helix Nebula is the closest example of a planetary nebula created at the end of the life of a Sun-like star.
The outer gasses of the star
expelled into space appear from our vantage point as if we are looking down
a helix.
The remnant central stellar core, destined to become a white dwarf star, glows in light so
energetic it causes the previously expelled gas to fluoresce.
The Helix Nebula, given a technical designation of
NGC 7293,
lies about 650 light-years away towards the
constellation of
Aquarius and spans about 2.5 light-years.
The above picture is a
composite
of newly released images from the
ACS instrument on the
Hubble Space Telescope
and wide-angle images from the Mosaic Camera on the
0.9-m Telescope at
Kitt Peak National Observatory.
A close-up
of the inner edge of the Helix Nebula shows complex gas knots of
unknown origin.
News: Today is Astronomy Day!
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:
Helix Nebula - Туманность Улитка - NGC 7293
Публикации со словами: Helix Nebula - Туманность Улитка - NGC 7293 | |
См. также:
Все публикации на ту же тему >> | |
