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38 Cards in this Set
- Front
- Back
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group of stars that form pics in sky
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constellation
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how many constellations are there
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88
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most important star for navigation
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Polaris
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North Star
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now Polaris but will probably change to Vega
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imaginary domecovering the night sky
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celestial spere
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equivalent to earths equator but located above it
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celestial equator
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equivalent to earths north pole currently POlaris is there
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celestial north pole
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does the celestial south pole have a star
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no
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point directly above you when standing up
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zenith
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latitude 0 to 90 degrees
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declination
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longitude measured 0-24 hours
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right ascension
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line in sky that sun and planets travel
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ecliptic
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major conselations are found on this line
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ecleptic line
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little bear,little dipper
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Ursa minor
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contains Polaris
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Ursa
Minor |
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big bear, big dipper
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ursa major
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dominant constellation in northern hemisphere
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Orion
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13 signs, constellations
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Zodiac
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w shaped constellation near Peruses
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Cassiopeia
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named for the vanquisher of the medusa
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Persus
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big and little dogs of Orion
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Canis Major and Canis Minor
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seven sisters constellation
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Pleiades
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bull who fights with Orion
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Taurus
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major constellation in southern hemisphere
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Magellanic clouds
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problem for navigation in southern hemisphere
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no southern star
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most famous constellation in southern hemisphere
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southern cross
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most constellations have ______ names
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Greek
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most stars have _____ names
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Arabic
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astronomical shapes are reffered by their ______
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Mesmer number
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day and night are = length ; first day of spring
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vernal or spring equinox
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day and night = but night sare eginning to get longer
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autumnal equinox
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usually around March 21st
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spring equinox
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usually around september 21st
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autumnal equinox
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day sun appears highest inthe sky
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summer solstice
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usually around June 21st
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summer solsitce
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sun lowest in sky
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winter solstice
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usually around dec 21st
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winter solstice
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earths current tilt
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23.5
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