ASTRONOMY 101 TEST
1 (Chapters 1-4)
How long does it take the Earth to orbit the Sun?
one year
What is the name given to the path of the Sun as seen from Earth?
Ecliptic
The ecliptic is best described as a(n):
plane
How many months apart are Winter Solstice and the Vernal Equinox?
3 months
Over what place on Earth is the Sun directly overhead on the Autumnal
equinox?
,the equator
When you are facing Polaris you are...
facing directly north
Astronomers use the word constellation to describe...
an entire region of the sky and all objects in that region.
What type of motion leads to the Sun rising and setting?
Earth's rotation
True or False: Every star in the night sky, regardless of your location, will rise and
set.
False
How long is an average solar day?
24 hours
, How long is a sidereal day?
23 hours and 56 minutes
How many constellations are there?
88
Where is the ecliptic as seen from the Earth?
tilted at a 23½ o angle compared to the celestial equator
The declination of the Sun on the Autumnal equinox is:
0 degree
If the Earth's axis were not tilted...
there would be no seasons
Constellations that never set are called
circumpolar
1 (Chapters 1-4)
How long does it take the Earth to orbit the Sun?
one year
What is the name given to the path of the Sun as seen from Earth?
Ecliptic
The ecliptic is best described as a(n):
plane
How many months apart are Winter Solstice and the Vernal Equinox?
3 months
Over what place on Earth is the Sun directly overhead on the Autumnal
equinox?
,the equator
When you are facing Polaris you are...
facing directly north
Astronomers use the word constellation to describe...
an entire region of the sky and all objects in that region.
What type of motion leads to the Sun rising and setting?
Earth's rotation
True or False: Every star in the night sky, regardless of your location, will rise and
set.
False
How long is an average solar day?
24 hours
, How long is a sidereal day?
23 hours and 56 minutes
How many constellations are there?
88
Where is the ecliptic as seen from the Earth?
tilted at a 23½ o angle compared to the celestial equator
The declination of the Sun on the Autumnal equinox is:
0 degree
If the Earth's axis were not tilted...
there would be no seasons
Constellations that never set are called
circumpolar
