Constellations

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Constellations
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Vocabulary Asterism An asterism is a smaller
group of stars that make up part of a
constellation. Celestial Sphere An imaginary
sphere surrounding the Earth. It is used to help
astronomers explain where objects a found in the
sky.  Color index A measure of a star's color,
which tells scientists how hot the stars surface
is. Constellation A grouping of stars which have
been given names by ancient astronomers because
of the way they look. Ecliptic The path the Sun,
Moon, and planets all follow in the sky. Light
Year The distance which a ray of light would
travel in one year. This is about
6,000,000,000,000 (6 trillion) miles. Magnitude
How bright a star appears to be. Multiple Stars
A group of stars that orbit each other. Zodiac A
band of the celestial sphere extending 8 to
either side of the ecliptic that represents the
path of the planets, the moon, and the
Sun. http//amazing-space.stsci.edu/tonights_sky/
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A constellation is any one of the 88 areas into
which the sky - or the celestial sphere - is
divided.
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Space Cadet Squads Altair Deneb Sirius Vega Which
constellations do these star names come from?
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Brightest Star Altair
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Brightest Star Deneb
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Brightest Star Sirius
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Brightest Star Vega
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The Big Dipper is not a constellation - it is
part of Ursa Major, the Greater Bear. The Big
Dipper is an asterism, a recognized, but not
official, grouping of stars. Some asterisms fall
within a single constellation, others cross
constellations.
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The Pleiades star cluster is an asterism in the
constellation Taurus the Bull.
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The ZODIAC
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North Circumpolar Stars