Solar System And the Universe

Question 1

Orbital period of Mercury

Answer 1

88 Days

Question 2

Orbital period of Venus

Answer 2

225 Days

Question 3

Orbital period Earth

Answer 3

365 1/4

Question 4

Orbital period of Mars

Answer 4

1.9 years

Question 5

Orbital period of Jupiter

Answer 5

12 years

Question 6

Orbital period of Saturn

Answer 6

29 years

Question 7

Orbital period of Uranus

Answer 7

84 years

Question 8

Orbital period of Neptune

Answer 8

165 years

Question 9

Mass of the moon

Answer 9

7.35 x 1022Kg

Question 10

Mass of the Earth

Answer 10

5. 976 × 1024 kg

Question 11

Diameter of the Earth

Answer 11

12,742 km

Question 12

North star

Answer 12

Polaris

Question 13

Closest star to the Earth

Answer 13

The Sun

Question 14

Closest star to the milky Way

Answer 14

Proximacentari

Question 15

Brightest Star

Answer 15

Cirus (Dog star)

Question 16

Death of a star

Answer 16

Supernova

Question 17

Highly ionized gas surrounding a star

Answer 17

Corona

Question 18

Largest known asteroid

Answer 18

Ceres

Question 19

Theory of the expanding universe

Answer 19

Big bang theory (George Lemaitre)

Question 20

Comet that was visible for several months in 1996

Answer 20

Hale-Bopp

Question 21

Comet visible from earth every 76 years

Answer 21

Halley’s comet (last seen 1986)

Question 22

Closest galaxy to the milky way

Answer 22

Andromeda

Question 23

Belt between Mars & Jupiter

Answer 23

Asteroid belt

Question 24

Galactic cloud of dust and gas

Answer 24

Nebula

Question 25

bright light seen near the poles of the Earth at night

Answer 25

Aurora

Question 26

Northern lights

Answer 26

Aurora Borialis

Question 27

Densest planet in the milky way

Answer 27

earth