ASTR 1102 EXAM 1 PRACTICE QUESTIONS AND
DETAILED SOLUTIONS
◉ What is a nebula?
Answer: Where stars are formed
◉ What is the only galaxy that can be seen from North America with
the naked eye?
Answer: Andromeda Galaxy
◉ What is the Hubble deep field?
Answer: cluster of galaxies
◉ Earth is measured in:
Answer: thousands of km
◉ Solar system is measured in:
Answer: tens of AU
◉ Stars are measured in:
Answer: a few to 100 ly
,◉ Galaxies are measured in:
Answer: 10^4-10^5 ly
◉ Distance between galaxies are measured in:
Answer: mly
◉ Universe is measured in:
Answer: billions of ly
◉ In Greek astronomy, the heavens represented:
Answer: perfection and unchanging
◉ Ptolemy's model:
Answer: Earth is stationary at the center & everything in the sky is
moving
◉ Who's theory says that stars were bright lights fixed to the
celestial sphere?
Answer: Ptolemy
, ◉ The sun, moon, planets & stars generally rise in the ___ and set in
the ____.
Answer: East; West
◉ What are circumpolar stars?
Answer: Stars that appear to move in a circle around either the
north or south pole without rising or setting
◉ As you move closer to the equator, there are ____ circumpolar stars
Answer: less
◉ How many rectangular regions are on the sky?
Answer: 88
◉ What cluster of stars is also known as 7 sisters and is used in the
Subaru logo?
Answer: Pleiades
◉ What purpose did constellations serve in the early ages?
Answer: pointed out direction
◉ How many modern constellations are listed in Almagest?
DETAILED SOLUTIONS
◉ What is a nebula?
Answer: Where stars are formed
◉ What is the only galaxy that can be seen from North America with
the naked eye?
Answer: Andromeda Galaxy
◉ What is the Hubble deep field?
Answer: cluster of galaxies
◉ Earth is measured in:
Answer: thousands of km
◉ Solar system is measured in:
Answer: tens of AU
◉ Stars are measured in:
Answer: a few to 100 ly
,◉ Galaxies are measured in:
Answer: 10^4-10^5 ly
◉ Distance between galaxies are measured in:
Answer: mly
◉ Universe is measured in:
Answer: billions of ly
◉ In Greek astronomy, the heavens represented:
Answer: perfection and unchanging
◉ Ptolemy's model:
Answer: Earth is stationary at the center & everything in the sky is
moving
◉ Who's theory says that stars were bright lights fixed to the
celestial sphere?
Answer: Ptolemy
, ◉ The sun, moon, planets & stars generally rise in the ___ and set in
the ____.
Answer: East; West
◉ What are circumpolar stars?
Answer: Stars that appear to move in a circle around either the
north or south pole without rising or setting
◉ As you move closer to the equator, there are ____ circumpolar stars
Answer: less
◉ How many rectangular regions are on the sky?
Answer: 88
◉ What cluster of stars is also known as 7 sisters and is used in the
Subaru logo?
Answer: Pleiades
◉ What purpose did constellations serve in the early ages?
Answer: pointed out direction
◉ How many modern constellations are listed in Almagest?
