astronomy Flashcards

Question

Answer 1

A

a group of stars that form a figure in the sky.

Answer 2

A

“fuzzy” path on the sky light or dark. a cloud of interstellar gas and dust.

Answer 3

A

small bodies that form the solar nebual that grew to a protoplanets.

Answer 4

A

astronomy word for large distances.

Answer 5

A

avgerage distance between sun and earth

Answer 6

A

the distance that light travels in one year

Answer 7

A

Protoplanets are moon-sized or larger planetary embryos within protoplanetary discs that have undergone internal melting to produce differentiated interiors.

Answer 8

A

sometime to shorten to fusion a reaction in which two nuclei combine to form a nucleus with a blast of energy.

Answer 9

A

the smaller planet closer to the sun

mercury

venus

earth

mars

Answer 10

A

the planets that are out the orbit of mars

Jupiter, Saturn, Uranus, Neptune.

Answer 11

A

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

Answer 12

A

a small rocky body that orbit the sun.

Answer 13

A

an astronomer who studies the evolution and space-time relations of the universe.

Answer 14

A

The rate of change of angular position of a rotating body.

Answer 15

A

an amount of time

Answer 16

A

Move in a circle on a central axis: “the fan revolved slowly”.

Answer 17

A

The time between two consecutive transits of the First Point of Aries, almost four minutes shorter than the solar day because of the earth’s orbital motion.

Answer 18

A

The time between successive meridian transits of the sun at a particular place.

Answer 19

A

365 days in a year.

Answer 20

A

The process of growth or increase, typically by the gradual accumulation of additional layers or matter.