Astronomy 1010 Test 1 Questions With
Correct Answers
celestial sphere - CORRECT ANSWER✔✔-imaginary sphere surrounding
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Earth to which all objects in the sky were once considered to be
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attached
celestial equator - CORRECT ANSWER✔✔-the projection of Earth's
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equator onto the celestial sphere
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celestial pole - CORRECT ANSWER✔✔-projection of Earth's North or
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South pole onto the celestial sphere
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ecliptic - CORRECT ANSWER✔✔-the apparent path of the Sun, relative
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to the stars on the celestial sphere, over the course of a year
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polaris - CORRECT ANSWER✔✔-the north star
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astronomical unit - CORRECT ANSWER✔✔-the average distance of Earth
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from the Sun. Precise radar measurements yield a value for the AU of
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149,603,500km
, winter solstice - CORRECT ANSWER✔✔-point on the ecliptic where the
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Sun is at its southernmost point below the celestial equator, occurring
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on or near December 21
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summer solstice - CORRECT ANSWER✔✔-point on the ecliptic where
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the Sun is at its northernmost point above the celestial equator,
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occurring on or near June 21 | | | | |
vernal equinox - CORRECT ANSWER✔✔-date on which the Sun crosses
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the celestial equator moving northward, occurring on or near March 21
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autumnal equinox - CORRECT ANSWER✔✔-date on which the Sun
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crosses the celestial equator moving southward, occurring on or near
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September 21 |
sidereal day - CORRECT ANSWER✔✔-the time needed between
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successive risings of a given star | | | | |
solar day - CORRECT ANSWER✔✔-the period of time between the
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instant when the Sun is directly overhead to the next time it is directly
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overhead
degree - CORRECT ANSWER✔✔-unit of angular measure
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Correct Answers
celestial sphere - CORRECT ANSWER✔✔-imaginary sphere surrounding
| | | | | | |
Earth to which all objects in the sky were once considered to be
| | | | | | | | | | | | |
attached
celestial equator - CORRECT ANSWER✔✔-the projection of Earth's
| | | | | | | |
equator onto the celestial sphere
| | | |
celestial pole - CORRECT ANSWER✔✔-projection of Earth's North or
| | | | | | | | |
South pole onto the celestial sphere
| | | | |
ecliptic - CORRECT ANSWER✔✔-the apparent path of the Sun, relative
| | | | | | | | | |
to the stars on the celestial sphere, over the course of a year
| | | | | | | | | | | |
polaris - CORRECT ANSWER✔✔-the north star
| | | | |
astronomical unit - CORRECT ANSWER✔✔-the average distance of Earth
| | | | | | | |
from the Sun. Precise radar measurements yield a value for the AU of
| | | | | | | | | | | | | |
149,603,500km
, winter solstice - CORRECT ANSWER✔✔-point on the ecliptic where the
| | | | | | | | | |
Sun is at its southernmost point below the celestial equator, occurring
| | | | | | | | | | |
on or near December 21
| | | |
summer solstice - CORRECT ANSWER✔✔-point on the ecliptic where
| | | | | | | | |
the Sun is at its northernmost point above the celestial equator,
| | | | | | | | | | |
occurring on or near June 21 | | | | |
vernal equinox - CORRECT ANSWER✔✔-date on which the Sun crosses
| | | | | | | | | |
the celestial equator moving northward, occurring on or near March 21
| | | | | | | | | |
autumnal equinox - CORRECT ANSWER✔✔-date on which the Sun
| | | | | | | | |
crosses the celestial equator moving southward, occurring on or near
| | | | | | | | | |
September 21 |
sidereal day - CORRECT ANSWER✔✔-the time needed between
| | | | | | | |
successive risings of a given star | | | | |
solar day - CORRECT ANSWER✔✔-the period of time between the
| | | | | | | | | |
instant when the Sun is directly overhead to the next time it is directly
| | | | | | | | | | | | | |
overhead
degree - CORRECT ANSWER✔✔-unit of angular measure
| | | | | |
