astronomy

Question 1

Define the word nebula?

Answer 1

Fuzzy patch on sky (light or dark).

Question 2

What is the definition of parsec?

Answer 2

To describe long distances.

Question 3

Atronomial unit is…?

Answer 3

the average distance between the sun and the earth.

Question 4

What is the definition of light year?

Answer 4

The distance light travels in one year.

Question 5

What is the definition of constellation?

Answer 5

Various groups of stars.

Question 6

What is the definition of planetesimal?

Answer 6

One of the small celestial bodies.

Question 7

what is protoplanetary?

Answer 7

Clump of material.

Question 8

Nuclear fusion is…?

Answer 8

Process of small nuclei combined to make a larger one.

Question 9

What is the definition of terrestrial planets?

Answer 9

Inner planet.

Question 10

what is the definition of gas giant planets?

Answer 10

Planet full of gas.

Question 11

What is the definition of a comet?

Answer 11

Celestial body moving about the sun.

Question 12

What is the definition of an astroid?

Answer 12

Minor planet.

Question 13

What is the definition of cosmologist

Answer 13

General structure and evolution of the universe.

Question 14

What is the definition of angular velocity?

Answer 14

Rate of change ofposition of a rotating body.

Question 15

A orbit is?

Answer 15

A curved path, followed by planets.

Question 16

preiod is?

Answer 16

Series of time which is measured.

Question 17

what word defines this definition: A circle path?

Answer 17

Revolve

Question 18

define the word for this definition: Turning on its axis.?

Answer 18

Rotation

Question 19

Sidereal day is?

Answer 19

Interval between two successive passages.

Question 20

Solar day is?

Answer 20

Two successive transits by the sun.

Question 21

A Period of 365 days?

Answer 21

Year.