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Astronomy 207 / ASTR 207 Midterm 1
Exam – Latest 2026/2027 Update | Verified
Questions & Verified Answers | Grade A
Study Guide
The amount of time between successive passes of any given star across the meridian is:
A) 365.25 days
B) 12 years
C) 23 hours, 56 minutes
D) 26,000 years
E) 24 hours
C) 23 hours, 56 minutes
When someone on Earth observes the Moon in the first-quarter phase, someone on the Moon
facing Earth observes Earth in the:
A) new Earth phase
B) crescent Earth phase
C) third-quarter Earth phase
D) full Earth phase
E) first-quarter Earth phase
C) third-quarter Earth phase
What is a circumpolar star?
A)a star that always remains above your horizon
B) a star that is close to the north celestial pole
C) a star that is close to the south celestial pole
D) a star that is visible from the Arctic or Antarctic circles
E) a star that makes a daily circle around the celestial sphere
A) a star that always remains above your horizon
When we see Venus in its full phase, what phase would Earth be in as seen by a hypothetical
Venetian?
A) third quarter
B) first quarter
C) waning crescent
D) full
E) new
D) full
, Suppose you live at latitude 40 degrees N. Which of the following describes the conditions that
make a star circumpolar?
A) stars are circumpolar if they have declination > +50 degrees
B) no stars are circumpolar at this latitude
C) stars are circumpolar is they have right ascension > 6 hr
D) stars are circumpolar is they have right ascension < 6 hr
E) stars are circumpolar is they have declination > +40 degrees
A) stars are circumpolar if they have declination > +50 degrees
On the 1-to-10 billion scale, about how far is it to the nearest stars besides the Sun?
A) 400 kilometers
B) 1000 kilometers
C) 4 kilometers
D) 4,400 kilometers
E) 10,000 kilometers
D) 4,400 kilometers
Orion is visible on winter evenings but not summer evenings because of:
A) interference from the full Moon
B) the tilt of the Earth's axis
C) the location of the Earth in its orbit
D) baseball on television
E) the precession of Earth's axis
C) the location of the Earth in its orbit
About where is our solar system located within the Milky Way Galaxy?
A) near the far outskirts of the galactic disk
B) in the halo of the galaxy above the galactic disk
C) at the center of the galaxy
D) about two-thirds of the way from the center of the galaxy to the outskirts of the galactic disk
E) about 10% of the way from the center of the galaxy to the outskirts of the galactic disk
D) about two-thirds of the way from the center of the galaxy to the outskirts of the galactic disk
If it is midnight in New York, it is
A) midnight in Los Angeles
B) midnight in Sydney, Australia
C) midday in Rio de Janeiro, Brazil
D) daytime in Sydney, Australia
E) midnight everywhere
D) daytime in Sydney, Australia
Which of the following statements about the ecliptic plane is not true?
A) the nodes of the Moon's orbit lie in the ecliptic plane
Astronomy 207 / ASTR 207 Midterm 1
Exam – Latest 2026/2027 Update | Verified
Questions & Verified Answers | Grade A
Study Guide
The amount of time between successive passes of any given star across the meridian is:
A) 365.25 days
B) 12 years
C) 23 hours, 56 minutes
D) 26,000 years
E) 24 hours
C) 23 hours, 56 minutes
When someone on Earth observes the Moon in the first-quarter phase, someone on the Moon
facing Earth observes Earth in the:
A) new Earth phase
B) crescent Earth phase
C) third-quarter Earth phase
D) full Earth phase
E) first-quarter Earth phase
C) third-quarter Earth phase
What is a circumpolar star?
A)a star that always remains above your horizon
B) a star that is close to the north celestial pole
C) a star that is close to the south celestial pole
D) a star that is visible from the Arctic or Antarctic circles
E) a star that makes a daily circle around the celestial sphere
A) a star that always remains above your horizon
When we see Venus in its full phase, what phase would Earth be in as seen by a hypothetical
Venetian?
A) third quarter
B) first quarter
C) waning crescent
D) full
E) new
D) full
, Suppose you live at latitude 40 degrees N. Which of the following describes the conditions that
make a star circumpolar?
A) stars are circumpolar if they have declination > +50 degrees
B) no stars are circumpolar at this latitude
C) stars are circumpolar is they have right ascension > 6 hr
D) stars are circumpolar is they have right ascension < 6 hr
E) stars are circumpolar is they have declination > +40 degrees
A) stars are circumpolar if they have declination > +50 degrees
On the 1-to-10 billion scale, about how far is it to the nearest stars besides the Sun?
A) 400 kilometers
B) 1000 kilometers
C) 4 kilometers
D) 4,400 kilometers
E) 10,000 kilometers
D) 4,400 kilometers
Orion is visible on winter evenings but not summer evenings because of:
A) interference from the full Moon
B) the tilt of the Earth's axis
C) the location of the Earth in its orbit
D) baseball on television
E) the precession of Earth's axis
C) the location of the Earth in its orbit
About where is our solar system located within the Milky Way Galaxy?
A) near the far outskirts of the galactic disk
B) in the halo of the galaxy above the galactic disk
C) at the center of the galaxy
D) about two-thirds of the way from the center of the galaxy to the outskirts of the galactic disk
E) about 10% of the way from the center of the galaxy to the outskirts of the galactic disk
D) about two-thirds of the way from the center of the galaxy to the outskirts of the galactic disk
If it is midnight in New York, it is
A) midnight in Los Angeles
B) midnight in Sydney, Australia
C) midday in Rio de Janeiro, Brazil
D) daytime in Sydney, Australia
E) midnight everywhere
D) daytime in Sydney, Australia
Which of the following statements about the ecliptic plane is not true?
A) the nodes of the Moon's orbit lie in the ecliptic plane
