Credit & Copyright: J. A. DeYoung (USNO).
61-cm Telescope, Washington, DC
Explanation:
Comet Hale-Bopp is spinning. The nucleus
of the comet is a dirty snowball about 25 miles in diameter
that spins about once
every 12 hours.
As Comet Hale-Bopp
spins, parts of the comet's surface shoot away in jets. Ejected
material therefore makes rings, which appear in above photograph
as "hoods"
in the coma. Even though
the central part of Comet
Hale-Bopp's
coma is quite condensed, the nucleus is not visible. Comet Hale-Bopp
is now headed south, away from the Sun,
and is getting dimmer.
At its brightest last week, it was even brighter than Comet Hyakutake
was last year, although with a less prominent tail.
Comet Hale-Bopp
will still be easily visible to northern observers for several
weeks in the northwest
sky after sunset.
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:
Comet Hale-Bopp - ядро кометы - комета Хейла-Боппа - кометные хвосты
Публикации со словами: Comet Hale-Bopp - ядро кометы - комета Хейла-Боппа - кометные хвосты | |
См. также:
Все публикации на ту же тему >> |