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Astronomy Unit 6

Terms in this set (31)

Mostly converts hydrogen to helium
Sun
Which stars turn into red giants
ALLSTAR
What can escape a black hole
Nothing
Which theory first predicted black holes
Einstein's theory of Relativity
Which stars are most plentiful
Low Mass Stars
What is the proper order of star formation
Nebula, protostar, main sequence, Red Giant
What best determines the Temperature of a star
Color
In a star, equilibrium is a balance of
Pressure and Gravity
Nuclear fusion begins due to
High Temperature
The space between stars is called
Interstellar
Which element cannot undergo nuclear fusion in a high mass star
Iron
Sunspots are caused by a spike in the ________ field
Magnetic
O-Type stars are what color
Blue
Our sun is what type of star
G
Which is correctly ranked largest to smallest
Red giant, sun, white dwarf, singularity
Energy is transported to the surface of the sun by means of
Convection and Radiation
The first exoplanet discovered was
51 Pegasi B
The first black hole discovered was
Cygnus X-1
Intermediate stars end up as
White Dwarf
The space telescope that has discovered the most exoplanets is
Kepler
Protostars that do not undergo nuclear fusion become
Brown dwarfs
A star's lifetime is determined by its
mass
Atmosphere of Sun
Chromosphere
Inner Layer - stable plasma
Radiation zone
Surface of sun - solar activity
Photosphere
Outer layer - turbulent
Convection zone
On a HR diagram, Red Giants are located in
Upper Right corner
On a HR diagram, White dwarfs are located in
Lower Left Corner
On a HR diagram, high mass main sequence stars are located in
Upper Left Corner
On a HR diagram, low mass main sequence stars are located in
Lower Right Corner
On a HR diagram, our sun is located in
The Middle
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