Credit & Copyright: Yousif Alqasimi &
Essa Al Jasmi
Explanation:
Sometimes even the sky surprises you.
To see more stars and faint nebulosity in the
Pleiades
star cluster
(M45),
long exposures are made.
Many times, less interesting items appear on the exposures that were not intended
-- but later edited out.
These include
stuck pixels,
cosmic ray hits, frames with
bright clouds or
Earth's Moon,
airplane trails,
lens flares,
faint satellite trails, and even
insect trails.
Sometimes, though, something
really interesting is caught by chance.
That was just the case a few weeks ago in
al-Ula,
Saudi Arabia
when a bright meteor streaked across during an
hour-long exposure of the
Pleiades.
Along with the
famous bright blue stars, less famous and less bright blue stars,
and
blue-reflecting dust surrounding the star cluster,
the
fast rock fragment created a distinctive green glow,
likely due to vaporized metals.
Jigsaw Universe:
Astronomy Puzzle of the Day
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:
meteor - pleiades - Meteor - Pleyady
Publikacii so slovami: meteor - pleiades - Meteor - Pleyady | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> | |
