astronmy

Question 1

Nebula

Answer 1

a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

Question 2

Solar Nebula

Answer 2

Our solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud.

Question 3

Nuclear Fusion

Answer 3

a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

Question 4

Sunspot

Answer 4

Sunspots are temporary phenomena on the Sun’s photosphere that appear as spots darker than the surrounding areas

Question 5

Terrestrial Planets

Answer 5

Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

Question 6

Prograde Rotation

Answer 6

Having a rotational or orbital movement that is the same as most bodies within a celestial system

Question 7

Retrograde Rotation

Answer 7

All eight planets in the Solar System orbit the Sun in the direction of the Sun’s rotation,

Question 8

Gas Giant

Answer 8

a large planet of relatively low density consisting predominantly of hydrogen and helium,

Question 9

Satellite

Answer 9

In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit.

Question 10

New Moon

Answer 10

In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude

Question 11

Waxing Crescent

Answer 11

illumination is growing and ‘Crescent’ means less than half of the Moon is illuminated. This phase signifies intention.

Question 12

1st Quarter Moon

Answer 12

The First Quarter Moon / Half Moon. The First Quarter Moon is a primary Moon phase when we can see exactly half of the Moon’s surface illuminated.

Question 13

Waxing Gibbous

Answer 13

Waxing means that it is getting bigger. Gibbous refers to the shape, which is less than the full circle of a Full Moon,

Question 14

Full Moon

Answer 14

when you can see it all

Question 15

Waning Gibbous

Answer 15

gibbous Moon rises after sunset, transits the meridian after midnight and sets after sunrise.

Question 16

Last Quarter Moon

Answer 16

Last quarter: The moon has moved another quarter of the way around Earth, to the third quarter position.

Question 17

Waning Crescent

Answer 17

Last Quarter - One-half of the Moon appears to be illuminated by direct sunlight.

Question 18

Solar Eclipse

Answer 18

A solar eclipse occurs when an observer passes through the shadow cast by the Moon which fully or partially blocks the Sun.

Question 19

Lunar Eclipse

Answer 19

A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow

Question 20

Comet

Answer 20

a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.

Question 21

Asteroid

Answer 21

Asteroids are minor planets, especially of the inner Solar System. Larger asteroids have also been called planetoids

Question 22

Asteroid Belt

Answer 22

The asteroid belt is a region of space between the orbits of Mars and Jupiter where most of the asteroids in our Solar System

Question 23

Meteoroid

Answer 23

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

Question 24

Meteorite

Answer 24

a meteor that survives its passage through the earth’s atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock,

Question 25

Meteor

Answer 25

a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.