Stars are not in position for this tribute. Flashcards

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???

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
stars consists of controlled atomic reactions called _____________ in which hydrogen atoms are fused to form helium atoms
nuclear fusion
26
what is Einstein's famous formula? idk how to ask this.
E=mc^2
27
what causes star to shine and give star its high temp
energy released by the star
28
how does energy from fusion stabilizes star
by producing the outward pressure needed to counteract the inward force of gravity
29
if fusion > gravity
there will be expansion
30
if fusion = gravity
there will be stability
31
what kind of stars are plotted in the HR diagram
stable stars
32
these stars shine with the hottest temp
blue stars
33
these stars shine with the coolest temp
red stars
34
our sun is a star of what color?
yellow
35
give the sequence of star spectral classification accdg to color, from hottest to coolest; idk
blue, blue-white, white, yellow-white, yellow, orange, red
36
give the sequence of star spectral classification, the letter thing
O B A F G K M
37
star luminosity is what
it is the brightness of a star??
38
energy output from the surface of a star per second is measured in??
watts.
39
brightness of star as it appears from earth with naked eye
apparent magnitude
40
true brightness of star if it were to be in equal distances from earth
absolute magnitude
41
exploded stars
supernova
42
center of supernova
neutron star