Stars are not in position for this tribute. Flashcards

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1
Q

Patterns that are recognized on the night sky

A

Asterism

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2
Q

Larger grouping or arrangement of stars

A

constellation

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3
Q

Examples of constellations

A

ursa major and ursa minor

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4
Q

Examples of asterism

A

big dipper, little dipper, tres marias

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5
Q

Ursa Major means?

A

Big Bear

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6
Q

Canis Minor means?

A

Small Dog

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7
Q

This star is found in the constellation Orion

A

Betelguese

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8
Q

Orion means?

A

The hunter

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9
Q

Ursa Minor means?

A

Small Bear

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10
Q

Canis Major means?

A

Big Dog

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11
Q

this star is found in canis major and it means scorching

A

sirius

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12
Q

this is found in the canis minor

A

procyon

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13
Q

this is found in the belt of the orion

A

tres marias

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14
Q

these people have made their own constellations

A

Arabs, Chinese, Egyptians, and Babylonians

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15
Q

Brightest stars are symbolized with what?

A

Alpha

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16
Q

Astronomers divide the sky into?

A

88 parcels

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17
Q

stars differ in???

A

mass, size, temperature, color and luminosity

18
Q

sirius, a star, means what???

A

scorching

19
Q

stars can be plotted using characteristics on a chart or???

A

HR Diagram

20
Q

shows the direct relationship between luminosity and temperature

A

Hertz-Sprung Russel Diagram

21
Q

these two determines most of the properties of a star

A

mass and composition

22
Q

relationship between size of star and its gravity

A

the more massive it is, the greater its gravitational force(?)

23
Q

our sun is what size??

A

medium-sized!!!

24
Q

in star’s core, these convert matter into energy

A

enormous pressure and heat

25
Q

stars consists of controlled atomic reactions called _____________ in which hydrogen atoms are fused to form helium atoms

A

nuclear fusion

26
Q

what is Einstein’s famous formula? idk how to ask this.

A

E=mc^2

27
Q

what causes star to shine and give star its high temp

A

energy released by the star

28
Q

how does energy from fusion stabilizes star

A

by producing the outward pressure needed to counteract the inward force of gravity

29
Q

if fusion > gravity

A

there will be expansion

30
Q

if fusion = gravity

A

there will be stability

31
Q

what kind of stars are plotted in the HR diagram

A

stable stars

32
Q

these stars shine with the hottest temp

A

blue stars

33
Q

these stars shine with the coolest temp

A

red stars

34
Q

our sun is a star of what color?

A

yellow

35
Q

give the sequence of star spectral classification accdg to color, from hottest to coolest; idk

A

blue, blue-white, white, yellow-white, yellow, orange, red

36
Q

give the sequence of star spectral classification, the letter thing

A

O B A F G K M

37
Q

star luminosity is what

A

it is the brightness of a star??

38
Q

energy output from the surface of a star per second is measured in??

A

watts.

39
Q

brightness of star as it appears from earth with naked eye

A

apparent magnitude

40
Q

true brightness of star if it were to be in equal distances from earth

A

absolute magnitude

41
Q

exploded stars

A

supernova

42
Q

center of supernova

A

neutron star