Term
| What is the ecliptic plane? |
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Definition
| The plane of the Earth’s orbit around the Sun |
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Term
| The annual motion of the sun relative to the stars is: |
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Definition
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Term
| When we look at an object that is 1/00 light-years away, we see it: |
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Definition
| As it was 1,000 years ago |
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Term
| The cause of the diurnal motion of the stars is the |
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Definition
| Earth’s rotation about its axis. |
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Term
| At the summer solstice in San Antonio, the Sun sets: |
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Definition
| At its northern-most point on the western horizon. |
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Term
| The precession of the earth’s rotation axis |
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Definition
-Is a slow wobble that takes 26,000 years to complete.
-Means that in AD 14,000, Vega will be a pole star |
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Term
| How long does it take the Earth to complete one orbit around the Sun? |
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Definition
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Term
| When did humans learn (by a consistent model) that the Earth is not at the center of the universe? |
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Definition
| Within the past 600 years |
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Term
| Seasons on the earth are caused by: |
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Definition
| -the tilt of the earth’s rotation axis with respect to its orbit. |
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Term
| If you counts one number every second, how long would it take you to count to one trillion? |
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Definition
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Term
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Definition
| -a solar eclipse that looks like a ring of light. |
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Term
| The phase of the moon during a lunar eclipse is |
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Definition
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Term
| Under the new definition of a planet issued by the IAU, the reason that Pluto was demoted to Dwarf Planet status was because: |
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Definition
| it has not cleared its orbit |
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Term
| Suppose its full moon. What phase of the earth would someone on the moon see at this time? |
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Definition
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Term
| The highest point in the sky is called the: |
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Definition
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Term
| Planet usually move with respect to the background stars: |
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Definition
| in a slow eastward motion. |
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Term
| If we have a new moon today, when we will have the next full moon? |
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Definition
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Term
| Where will a superior planet in retrograde motion rise? |
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Definition
| in the east (just like everything else in the sky). |
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Term
| You are standing at the earth’s North Pole. Which direction is Polaris, the North Star? |
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Definition
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Term
| If the moon is rising at about 7 am, the phase of the Moon must be: |
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Definition
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Term
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Definition
-a natural consequence of a heliocentric model.
-the apparent angular shift of nearby stars relative to further ones. |
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Term
| What happens during the apparent retrograde motion of a planet? |
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Definition
| The planet appears to move westward with respect to the stars over a period of many nights. |
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Term
The geocentric model was unable to explain:
a. the apparent lack of motion of the earth.
b. the daily motion of the stars.
c. the annual motion of the sun.
c. all of the above
e. none of the above (it could explain all of them.) |
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Definition
| e. none of the above (it could explain all of them.) |
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Term
| which of the following has your “cosmic address” in the correct order? |
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Definition
| You, Earth, solar system, Milky Way, Local group, Local Supercluster. |
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Term
| _________ is when a planet is directly between the earth and Sun. |
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Definition
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