Astronomy

Question 1

What is the definition for astronomy?

Answer 1

The study of the Universe

Question 2

What is a constellation?

Answer 2

A group of stars that form a pattern in the sky.

Question 3

What is the Polaris?

Answer 3

A bright star located within a degree of the north pole.

Question 4

What is the EM Spectrum?

Answer 4

A spectrum based on the range of all possible frequencies of electromagnetic radiation.

Question 5

What is the Emission spectrum?

Answer 5

A spectrum based on the amount of electromagnetic radiation a source emits.

Question 6

​What is the Absorption spectrum?

Answer 6

A spectrum based on how much radiation is absorbed by a substance when electromagnetic radiation is transmitted through.

Question 7

​What is the Astronomical unit?

Answer 7

A unit of measurement that is 149,597,871 kilometers, it is also the approximate distance from the center of the sun to the center of Earth.

Question 8

What is the definition of a light year?

Answer 8

The distance at which light travels in a year, about 9.5 trillion km.

Question 9

What is luminosity? (astrology)

Answer 9

The brightness of a star

Question 10

What is a nebula?

Answer 10

Is a cloud of gas and dust in space.

Question 11

What is a ​proto-star?

Answer 11

A large glowing dust cloud that could eventually become a star.

Question 12

What is a ​red giant?

Answer 12

Red stars that are cooler and brighter then blue/white stars.

Question 13

What is ​fusion?

Answer 13

The process and result of joining two or more things together to form a single entity.

Question 14

​what is a white dwarf?

Answer 14

Is formed when a small star has used all its central fuel and lost its outer layers.

Question 15

What is a ​supernova?

Answer 15

An intensely bright object caused by a red giant star that exploded.

Question 16

​What is a neutron star? The dense core left after a large star exploded

Answer 16

The dense core left after a large star exploded.

Question 17

What is a black hole?

Answer 17

Objects in space whose gravitational forces are so strong that not even rays of light can escape.

Question 18

What is a ​galaxy?

Answer 18

A group of millions, or even billions of stars held together by gravity.

Question 19

What is a​ globular cluster?

Answer 19

A large and compact circular start cluster.

Question 20

What is a ​quasar?

Answer 20

It is a distant radio sources that resemble stars, except for they are larger

Question 21

What is The ​Big Bang?

Answer 21

It’s a theory in which the universe was originally created by a dense sphere of hydrogen that exploded into our ever growing/expanding universe

Question 22

What is an Astronomical unit?

Answer 22

A unit of measurement equal to 149.6 million kilometers, it is also the distance from the center of the earth to the center of the sun.

Question 23

What is a Period of rotation?

Answer 23

Is the period in which the planet completes a full rotation

Question 24

What is a ​Period of revolution?

Answer 24

is the period in which the planet completes a full loop of it orbital course

Question 25

What is the ​corona?

Answer 25

is the sun’s outer atmosphere, that is above the chromosphere

Question 26

What is a chromosphere?

Answer 26

a layer of the sun’s atmosphere that is located just above the photosphere

Question 27

What is a ​photosphere?

Answer 27

is the visible yellow surface of the sun

Question 28

What is a ​solar flare?

Answer 28

is a sudden burst of energy that comes from areas of sunspot activity

Question 29

What is a sunspot?

Answer 29

a dark area on the sun’s atmosphere

Question 30

What is ​solar wind?

Answer 30

a stream of electrically-charged particles that are blown out from the sun in all directions

Question 31

What is a planet?

Answer 31

is a celestial body moving in orbit around a star

Question 32

What is a moon?

Answer 32

Is any natural satellite of a planet

Question 33

What is the force of gravity?

Answer 33

is when, objects with mass attract one another

Question 34

What is a ​ellipse? is a regular oval shape

Answer 34

is a regular oval shape

Question 35

What is eccentricity?

Answer 35

the change of a curve or orbit from circularity

Question 36

What is ​a perihelion?

Answer 36

the spot at which the orbit of a planet, asteroid, or comet at which it is closest to the sun

Question 37

What is aphelion?

Answer 37

the spot at which the orbit of a planet, asteroid, or comet at which it is furthest to the sun

Question 38

What is Kepler's Laws(3)?

Answer 38

The first out of three laws state that planets move in elliptical orbits with the sun at one focus. The second states that the radius vector of a planet sweeps out equal areas in equal times. The third law relates the distances of the planets from the sun to their orbital periods.

Question 39

What is an Asteroid Belt?

Answer 39

the region of space between the orbits of Mars and Jupiter in which most asteroids are located

Question 40

What is ​an asteroid?

Answer 40

Is any small celestial bodies composed of rock and metal that move around the sun.

Question 41

What is a dwarf planet?

Answer 41

It is a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.

Question 42

What are Terrestrials?

Answer 42

It is representing the earth as distinct from other planets, meaning anything Earth bond is terrestrial.

Question 43

What is a meteorite/meteoroid?

Answer 43

Is a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.

Question 44

What are ​Jovian's?

Answer 44

is and adjective referring to the planet Jupiter.

Question 45

What is a ​comet?

Answer 45

is a chunk of frozen gasses, ice, and rocky debris that orbits the Sun

Question 46

What is a ​coma?

Answer 46

is a diffuse cloud of gas and dust surrounding the nucleus of a comet.

Question 47

What is ​a nucleus of a comet?

Answer 47

It is a solid part of the head of a comet.