Astronomy SemesterFinal Exam Review
1. What objects are considered to be part of our solar system?
2. How far away from the Earth is the Moon?
3. What objects are thought to be the largest structures in the Universe?
4. How many definite constellations are there in the night sky?
5. About how many light years across is our galaxy?
6. What unit is used to measure degrees north or south in the Celestial Sphere?
7. What unit is used to measure degrees east or west in the Celestial Sphere?
8. How long does it take for the zero Right Ascension
mark to move around the Celestial Sphere?
9. Exactly how many days does it take for the Moon to go through a Synodic Month?
10. A ______month of the Moon cycle is a true 360o revolution.
11. ______is the farthest elliptical point of the Moon in its orbital path around the Earth.
12. How many arc minutes per hour does the Moon travel in its orbital path?
13. What is the stage of the Moon from Full Moon to New Moon called?
14. What is it called when more of the Moon is illuminated by the Sun than in shadow?
15. About how many days past New Moon phase is the 3rd Quarter phase?
16. What time of day does the 1st Quarter Moon set?
17. If the Moon is full, and it is sunset, where will the Moon be in the sky?
18. Who was the man responsible for collecting the data
used to discover the 3 Laws of Planetary Motion?
19. Which statement about eccentricity is true? 0 > e > 1 0 = e = 1 0 < e < 1
20. What is the measured distance of 1 AU?
21. What are the 10 observations astronomers accept as true about our solar system?
22. The only difference between an Asteroid and a Meteoroid is its ______.
23. An object coming through the atmosphere, that is made of rock & metal, is less
than a meter in diameter, and is emitting light, is called a ______.
24. An object coming through the atmosphere, that is made of rock & metal, is
emittinglight, and strikes the Earth’s surface is called a ______.
25. How far is the outer edge of the Oort Cloud from the Sun?
26. Exactly how many moons are present in our solar system?
27. What is it called when microscopic grains of dust clump into larger particles?
28. What do we call it when a huge planetary nebula cloud
collapses in on itself and rotate faster & faster?
29. Name the order of the solar system objects from the
innermost object(s) to the outermost object(s).
30. Why did Terrestrial planets form?
31. What caused the formation of the Asteroid Belt?
32. The Milky Way Galaxy has approximately how many stars?
33. What does “differential rotation” mean?
34. ______galaxies have bold two armed symmetrical patterns.
35. ______galaxies have numerous short spiral segments.
36. The model of galaxy formation that describes the origin of a galaxy as a large
cloud of gas eventually flattening into a disk is called ______.
37. What part of the Milky Way Galaxy does is our solar system located?
38. About how many galaxies exist in the Universe?
39. What are the different types of galaxies?
40. What are the different types of active galaxies?
41. What percentage of galaxies in the universe are spiral galaxies?
42.How many galaxies are in our local cluster of galaxies?
43. What are the galaxies that are a part of our Local Group?
44. Standard candle refers to ______.
45. Though quasars are very far away, they are highly luminous; being
______times higher in luminosity than galaxies like our own?
46. The farthest galaxy that has been discovered is ______light years away.
47. A Neutron star weighs ______solar masses.
48. A Neutron star is between ______in diameter.
49. A thimble full of Neutron star material would weigh ______on Earth.
50. The object that is described using the Lighthouse Model is a ______.
51. What is the maximum velocity a Neutron Star can rotate on its axis before it tears itself apart?
52. Matter falling onto it’s surface due to gravitationalpull
is what causes ______to rotate faster.
53. The exact center of a black hole is called a(n) ______.
54. A black hole’s point of no return is called the ______.
55. What unit is a measurement of distance, not time; and is measured at 9.46 Trillion km?
56. What is the farthest point of an object in its orbit path called?
57. What is the closest point of an object in its orbital path called?
58. What is measured at 300,000 km/sec?
59. The period of time from one Vernal Equinox to the next is called:
60. The time it takes for the Earth to move around the Sun relative to the stars is called:
61. The rotation of Earth’s axis itself which makesonecomplete
conical circle about every 26,000 years is called:
62. The period of time when the Sun appears overhead
in theexact spot as the day before is called:
63. The period of time it takes for Earth to make one truerotation
on its axis (360o) in relation to the stars is called:
64. What type of eclipse is it, when the Moon is at its apogee and
the Earth is at its perihelion, and the angular diameter of the
Moon is smaller than the angular diameter of the Sun?
65. What is it called when the Moon and the Sun have the same angular
diameter, and the Moon is blocking the photosphere of the Sun?
66. What is it called when only part the Moon is in the Earth shadow
or when only some of the Sun is being blocked by the Moon?
67. The central part of an eclipse where the Sun is completely blocked, casting a full shadow.
68. The part of an eclipse where the Sun is partially blocked, casting a partial shadow.
69. What is the plane of the Earth’s orbit around the Sun called?
70. What is the conical motion of the Earth’s axis called?
71. What is the movement of objects across the sky due to the Earth’s rotation on its axis called?
72. What are the points where the Moon passes through the plane of the Earth’s orbit called?
73. What is it called when Astronomers can calculate
distances by measuring the baseline and angles?
74. What is the apparent motion of an object as seen against a
distant background from two observation points called?
75. What is the full length of the long axis of an ellipse called?
76. What is the measurement of the flatness of an ellipse called?
77. Objects the size of small moons with gravitational fields
strong enough to influence their neighbors are called:
78. Small, rocky planets with high density, that have few(if any)
moons, and are closer to their parent star are called:
79. Planets with large, thick atmospheres, high gravitational fields,low
density, many moons, and are far from their parent star are called:
80. Planets located outside of our solar system that orbit other stars are called: