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42 Cards in this Set

  • Front
  • Back
what are the dark spots on the moon called
mare (maria)
what are the names of three maria
imbrium- tranquility- serenity
what are the names of 2 craters
tycho and copernicus
what is the size of the moon compared to Earth
North America
what are mars' moons name
Phobos and Deimos
What is Pluto's name?
what are the light spots of the moon called
highlands- oldeer part of the moon- heavily cratered
what are the light spots of the moon called
highlands- oldeer part of the moon- heavily cratered
what is the surface of the moon covered in
regolith- fine dust and rocky debris
what is the moon's orbit called
what is the distance from the earth to the moon
384,000 km
first visit to the moon
by the Soviet- Luna 2- no humans- 1959
first human landing
july 20th 1969- armstrong
last time the moon was visited
december 1972
fission theory
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
capture theory
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
revolution and roatation
27.3 days- this means that we only get to see one side of the moon
what is the other side of the moon called
dark side of the moon- if you go to the moon you can see it
synodic month
lunar month- length of time from new moon to new moon
how many phases of the moon are there
8 phases
waning gibbous
left side is fat
waxing gibbous
right side is fat
waning crescent
the left is a crescent
waxing crescent
right side is a crescent
third quarter
left side is visible
first quarter
right side is visible
6 hrs before the peak
6 hrs after peak
high tide
the water comes in- water level rises- waves are more massive
low tide
water level lowers-water goes more out-waves are smaller
spring tide
extremely high tide- when moon is in direct alignment with the sun or the moon is opposite the earth
neap tide
water level is lower than normal low tide- occurs when sun and moon are at right angles with eachother
how often do special tides occur
2 times a month
how many tides are there in one day
2 high and 2 low- changes every 6 hours
when moon, sun, and earth lie on the same eliptic plane
lunar eclipse
sun-earth-moon, takes 3-4 hours, happens late at noon
solar eclipse
sun-moon-earth, 10 minutes, around noon, gives of U.V.radiation
bailey beads
light from the sun bouncing off valleys and mountainsof the moon
very tall flames on surface of the sun
huge arches on surface of the sun
diamond ring
last visible light from the sun
most outside layer of the sun