Exam 1

Question 1

How many constellations are there

Answer 1

88

Question 2

How many stars can we see from earth with the naked eye

Answer 2

1,500 stars

Question 3

Can you explain apparent motions of objects in the night sky

Answer 3

Our planet is tilted 23.5 degrees. The earth completes one revolution around the sun every 365.4 days. The sun is directly above the equator at the vernal equinox (March 21), above the Tropic of Cancer on the summer of solstice (June 21), above the equator on the autumnal equinox (September 23), and above the Tropic of Capricorn on the winter solstice (December 21)

Question 4

Arbiter of all things astronomical

Answer 4

IAU

Question 5

How many constellations are there in the zodiac

Answer 5

13 constellations of the zodiac

Question 6

Who pursued who in Greek mythology that is present in the night sky

Answer 6

Orion pursued the 7 sisters (the Pleiades)

Question 7

What happens in the Greek story when Orion sets

Answer 7

Orion is killed by a scorpion when Orion sets and Scorpio rises

Question 8

Asterism is what?

Answer 8

A group of stars

Question 9

The vernal equinox is also called

Answer 9

The first point of Aries ( actually we are in the epoch of Pisces)

Question 10

In which neighborhood does the sun live in

Answer 10

The Orion spur

Question 11

Who discovered that the Milky Way is full of stars

Answer 11

Galileo

Question 12

What are the stars that point to Polaris

Answer 12

Merak and Dubhe

Question 13

What is the distance from the earth to the sun

Answer 13

1 astronomical unit (1 AU)

Question 14

What is the best place to view a star

Answer 14

The observers meridian

Question 15

A light year is how many AUs

Answer 15

63,241 astronomical units

Question 16

The sun and moon have the same _______ size in the sky

Answer 16

Angular

Question 17

Hipparchus first did what?

Answer 17

Hipparchus first classified brightness’s on a magnitude scale

Question 18

How old is the universe

Answer 18

13.7 billion years old

Question 19

Human eye can see down to what magnitude

Answer 19

6th magnitude

Question 20

5 magnitudes is equal to?

Answer 20

100 times in brightness

Question 21

What magnitude is the sun

Answer 21

-26.7

Question 22

The brightest star has a magnitude of what (what is the star)

Answer 22

-1.45 Sirius

Question 23

Higher the magnitude,

Answer 23

Fainter the star

Question 24

The path of the sun is the…

Answer 24

Ecliptic

Question 25

Who is messier

Answer 25

A person who named 103 blobs in the night sky (andromeda)

Question 26

Right ascension is the equivalent to…

Answer 26

The longitude

Question 27

Declination is the equivalent to…

Answer 27

The latitude

Question 28

How are stars measured

Answer 28

Through parallax

Question 29

When planets appear closer in the sky, it is called…

Answer 29

A conjunction

Question 30

Formula for the circumpolar sky

Answer 30

Declination greater than or equal to 90 - latitude

Question 31

What is directly above the observer

Answer 31

The zenith

Question 32

What is directly below the observer

Answer 32

The nadir

Question 33

The winter sky includes which constellations

Answer 33

Orion, Taurus, Gemini, Canis Major, Canis Minor, Cancer

Question 34

Summer constellations

Answer 34

Summer Triangle, Cygnus(Deneb) , Lyra(vega), Aquila(Altair) , Capricorn, Sagittarius, Scorpio

Question 35

Autumn constellations

Answer 35

Pegasus, andromeda, Aquarius, Pisces, Aries, Cetus, Eridanus

Question 36

Spring constellations

Answer 36

Leo, Virgo, bootes, ophiocus, Hercules, Corona Borealis, libra, Canes Venatici, Coma Berenices, Corvus

Question 37

Summer Triangle includes which stars

Answer 37

Deneb, Altair, Vega