Credit & Copyright: Keith Quattrocchi,
Mel Helm
Explanation:
Adrift in the
rich star fields
of the constellation Cygnus, this
lovely, symmetric bubble nebula was only recently recognized and may
not yet appear in astronomical catalogs.
In fact, amateur astronomer
Dave Jurasevich identified
it as a nebula on July 6 in
his
images of the complex
Cygnus region that included the Crescent Nebula (NGC 6888).
He subsequently notified the International Astronomical Union.
Only eleven days later the same object was independently identified by
Mel Helm at Sierra Remote
Observatories,
imaged by Keith Quattrocchi and Helm, and also submitted to the IAU
as a potentially unknown nebula.
Their final composite image is seen here,
including narrow-band image data that highlights the
nebula's delicate outlines.
What is the newly recognized bubble nebula?
Like the Crescent Nebula
itself, this cosmic bubble could be blown by
winds from a massive
Wolf-Rayet star, or it could be a
spherically-shaped planetary nebula,
a final phase in the life of a sun-like star.
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:
Wolf-Rayet star - planetary nebula - Туманность Полумесяц - звезды Вольфа-Райе - Планетарная туманность - созвездие Лебедя
Публикации со словами: Wolf-Rayet star - planetary nebula - Туманность Полумесяц - звезды Вольфа-Райе - Планетарная туманность - созвездие Лебедя | |
См. также:
Все публикации на ту же тему >> |