Credit & Copyright: Paolo Palma
Explanation:
It's fun to scribble on the
canvas of the sky.
You can use a creative photographic technique to cause
the light of point-like stars to dance across a digital
image by tapping lightly on the telescope while making
an exposure.
The result will be a squiggly line traced by the star (or two
squiggles traced by binary stars) that can reveal the star's color.
Colorful
lines, dubbed Ghirigori,
made from stars found in
the northern sky constellations Bootes,
Corona Borealis, Ophiucus, and Coma Berenices, are captured
in this artistic mosaic.
The 25 stars creating the varied and colorful squiggles
are identified around the border.
Of course, temperature determines
the color of a star.
While whitish stars tend to be close to the Sun's temperature,
stars with bluer hues are hotter, and yellow
and red colors are cooler
than the Sun.
Weekend Watch:
Perseid
Meteor Shower
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 |
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.
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Publikacii s klyuchevymi slovami:
star trail - sledy zvezd
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