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33 Cards in this Set
- Front
- Back
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Nearby stars and planetary systems
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Stellar region
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describe an open cluster
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younger stars
also called galactic 10-2000 stars moslty in disk random asymmetias bundle ex: Pleides |
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Symbol for an irregular or peculiar galaxy
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Irr
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Several galaxy clusters and voids
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Super Cluster
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Thought to be location of oldest stars
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Halo
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Three major classifications of galaxies
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Elliptical, Spiral, & Irregular
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Describe a globular cluster
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older stars
more dense 100's in the bulge or halo helps determine the age of the galaxy high spherical bundle |
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Possible explanations for irregular / peculiar galaxies
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possibly a result of collisions between galaxies or an odd or angled view.
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A group of planets orbiting a star
ex. (Solar,System) |
Planetary System
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Three considerations for classifying galaxies
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Earth's perspective
Shape-disk? Bulge? Arms? Stretched? Activity- Black holes? Quasars? Collisions? |
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Collection of stellar regions orbiting a central point
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Galaxy
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A grouping of galaxies can be up to 1,000 galaxies
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Galaxy Cluster
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Symbol for a tightly wound sprial galaxy
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Sa
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Symbol for a round elliptical galaxy
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Eo
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Another name for an open cluster
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galactic
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Area of galaxy with younger stars
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open
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Area of galxy with older stars
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globular
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"red" cluster
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globular
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Symbol for a flat elliptical galaxy
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E5
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Cluster with older stars
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globular
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Name of our galaxy
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Milky Way
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Inner region of stars
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Bulge
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Outer region of stars
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Disk
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"equator" of the galaxy ("middle")
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Galactic Plane
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Example of an open cluster
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Pleides
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Name of our planet
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Earth
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Name of our planetary system
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Solar System
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Name of our stellar region
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Stellar Neighborhood
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Name of our Super Cluster
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Local Cluster
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Name of our galaxy cluster
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Local Group
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Larger Cluster
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Open
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Symbol for a barred spiral galaxy
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Sb
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All space, time, matter, & energy
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Universe
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