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astronomy Flashcards

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1
Q

what is this?

A

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

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2
Q

what is this?

A

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

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3
Q
  • what is this?
A

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

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4
Q

what is this?

A

astronomy word for large distances.

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5
Q

what is this?

A

avgerage distance between sun and earth

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6
Q

what is this?

A

the distance that light travels in one year

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7
Q

what is this?

A

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

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8
Q

what is this?

A

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

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9
Q

what is this?

A

the smaller planet closer to the sun

mercury

venus

earth

mars

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10
Q

what is this?

A

the planets that are out the orbit of mars

Jupiter, Saturn, Uranus, Neptune.

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11
Q

what is this?

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

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12
Q

what is this?

A

a small rocky body that orbit the sun.

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13
Q
A

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

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14
Q
A

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

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15
Q
A
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16
Q
A

an amount of time

17
Q
A

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

18
Q
A
19
Q
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.

20
Q
A

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

21
Q
A

365 days in a year.

22
Q

what is the meaning?

A

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

23
Q

what

A

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29
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science (2 decks)

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