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AST1002 Mid-Term Exam With Complete Solution
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AST1002 Mid-Term Exam With Complete Solution...
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AST1002 Mid-Term Exam WithComplete Solution
There are ________ degrees in a circle, __________ minutes in a degree, and
___________ seconds in a minute. - ANSWER 360; 60; 60
Imaginary structure surrounding Earth, to which the stars are affixed: -
ANSWER Celestial Sphere
This point on the celestial sphere is directly above Earth's north pole: -
ANSWER Celestial North Pole
This point on the celestial sphere is directly above Earth's south pole: -
ANSWER Celestial South Pole
This great circle on the celestial sphere is directly above Earth's equator: -
ANSWER Celestial Equator
Instead of latitude, celestial equatorial system coordinates use lines of -
ANSWER Declination
Instead of longitude, celestial equatorial system coordinates use lines of -
ANSWER Right Ascension
This great circle is the boundary between the Earth and the sky: - ANSWER
Horizon
This point is at the top of your sky: - ANSWER Zenith
This line stretches from North through the Zenith, to the South: - ANSWER
Meridian
,In the horizon system, an angular measurement of height is called: - ANSWER
Altitude
In the horizon system, an angular measurement of compass direction is
called: - ANSWER Azimuth
The sun, moon, stars, and planets rise in the _________ and set in the __________;
this is due to the Earth's ___________. There are _______ hours in one solar day. -
ANSWER East; West; rotation; 24
The sun is highest in the sky at __________. - ANSWER Noon
Earth's orbital path around sun, or sun's yearly path in our sky: - ANSWER
The Ecliptic
Due to Earth's revolution, the sun seems to move _________ against the starry
background. - ANSWER Eastward
The sun, moon, and planets are all found on or near this line: - ANSWER
Ecliptic
The ecliptic is also the center line of the _________. - ANSWER Zodiac
During what season do the following constellations appear in the
mid-evening sky?
Orion:
Scorpius:
Leo:
Pegasus: - ANSWER Orion: Winter
Scorpius: Summer
,Leo: Spring
Pegasus: Fall
The beginnings of spring and fall are called _________. - ANSWER Equinoxes
The beginnings of summer and winter are called ________. - ANSWER Solstices
The point in a planet's orbit when it's nearest from the sun: - ANSWER
Perihelion
The point in a planet's orbit when it's farthest from the sun: - ANSWER
Aphelion
Month when Earth is at perihelion; at aphelion ________/________ - ANSWER
January 4/ July 4
When Earth's northern hemisphere has summer, the southern hemisphere
has ___________; etc. - ANSWER Winter
The reason why we have seasons on Earth is due to the
__________________________________________________________. - ANSWER Placement of
the sun at certain times of the day with the 23 1/2 degree tilt of Earth as it
orbits the sun each year
Identify the day of the week with the Roman/Norse god-
Sunday:
Monday:
Tuesday:
Wednesday:
Thursday:
, Friday:
Saturday: - ANSWER Sunday: Sun
Monday: Moon
Tuesday: Mars (Tieu)
Wednesday: Mercury (Woden)
Thursday: Jupiter (Thor)
Friday: Venus (Freya)
Saturday: Saturn
Officially, general mythological grouping of stars: - ANSWER Constellations
Number of officially recognized constellations: - ANSWER 88
True/ False: Because the stars are very far away from us, their angular
velocities are great; so today's constellation patterns are very different from
those of thousands of years ago. - ANSWER Stars are very far away: True
Their angular velocities are great: False
Today's constellation patterns are very different from those of thousands of
years ago: False
Unofficial, easier to see star grouping: - ANSWER Asterism
Example of asterism: - ANSWER Big Dipper
Our current North Star, this star lies very near the north celestial pole: -
ANSWER Polaris
Constellations typically have ___________ names; stars typically have ____________
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