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42 Cards in this Set
- Front
- Back
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what are the dark spots on the moon called
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mare (maria)
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what are the names of three maria
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imbrium- tranquility- serenity
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what are the names of 2 craters
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tycho and copernicus
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what is the size of the moon compared to Earth
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North America
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what are mars' moons name
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Phobos and Deimos
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What is Pluto's name?
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Charon
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what are the light spots of the moon called
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highlands- oldeer part of the moon- heavily cratered
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what are the light spots of the moon called
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highlands- oldeer part of the moon- heavily cratered
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what is the surface of the moon covered in
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regolith- fine dust and rocky debris
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what is the moon's orbit called
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elliptical
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what is the distance from the earth to the moon
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384,000 km
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first visit to the moon
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by the Soviet- Luna 2- no humans- 1959
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first human landing
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july 20th 1969- armstrong
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last time the moon was visited
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december 1972
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fission theory
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the moon was one a part of the earth and it separated- pacific ocean basin is the most popular idea of where it separated from- most accepted beacuse the earth and moon are similar in make up
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capture theory
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the moon was formed somewhere else and the earth's gravity captured it- not likely because the earth's gravity is not strong enough to pull in such a big body
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revolution and roatation
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27.3 days- this means that we only get to see one side of the moon
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what is the other side of the moon called
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dark side of the moon- if you go to the moon you can see it
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synodic month
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lunar month- length of time from new moon to new moon
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how many phases of the moon are there
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8 phases
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waning gibbous
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left side is fat
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waxing gibbous
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right side is fat
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waning crescent
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the left is a crescent
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waxing crescent
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right side is a crescent
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third quarter
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left side is visible
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first quarter
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right side is visible
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rise
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6 hrs before the peak
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set
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6 hrs after peak
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high tide
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the water comes in- water level rises- waves are more massive
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low tide
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water level lowers-water goes more out-waves are smaller
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spring tide
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extremely high tide- when moon is in direct alignment with the sun or the moon is opposite the earth
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neap tide
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water level is lower than normal low tide- occurs when sun and moon are at right angles with eachother
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how often do special tides occur
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2 times a month
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how many tides are there in one day
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2 high and 2 low- changes every 6 hours
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eclipses
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when moon, sun, and earth lie on the same eliptic plane
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lunar eclipse
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sun-earth-moon, takes 3-4 hours, happens late at noon
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solar eclipse
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sun-moon-earth, 10 minutes, around noon, gives of U.V.radiation
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bailey beads
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light from the sun bouncing off valleys and mountainsof the moon
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flares
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very tall flames on surface of the sun
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prominences
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huge arches on surface of the sun
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diamond ring
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last visible light from the sun
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corona
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most outside layer of the sun
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