Show:
Solar System
The Sun
Properties of Stars
Lives & Deaths of Stars
Stellar Corpses
100
The two kinds of planets.
What are terrestrials and jovians?
100
This is the visible "surface" of the Sun.
What is the photosphere?
100
The star Altair has an apparent magnitude of 0.8. The star Polaris has an apparent magnitude of 2.0. This star appears brighter in the sky.
What is Altair?
100
A star in the process of forming is called this.
What is a protostar? (or What is a T Tauri star?)
100
A white dwarf is about the same size as this.
What is the Earth?
200
Its mass is 99.85% of the mass of the solar system.
What is the Sun?
200
The Sun produces energy by nuclear fusion of this element into helium.
What is hydrogen?
200
The largest stars are found here on the H-R diagram.
What is the upper right?
200
These types of stars will end their lives with a core-collapse supernova.
What are high mass stars?
200
The radius around a black hole where escape velocity is equal to the speed of light is called this.
What is the event horizon?
300
Most asteroids are found in a belt that lies between the orbits of these two planets.
What are Mars and Jupiter?
300
The Sun's surface exhibits a changing, mottled appearance, called this.
What is granulation? (or What are granules?)
300
These are the most common stars in the Universe.
What are red dwarfs? (or What are low-mass stars?)
300
When the Sun is a red giant, it will be as big across as this.
What is the orbit of the Earth? (or What is 2 AU?)
300
A pulsar is a rapidly spinning one of these.
What is a neutron star?
400
Pluto is a member of this group of bodies.
What is the Kuiper Belt? also acceptable: What are Trans-Neptunian Objects? What are dwarf planets?
400
The solar wind emanates from this region of the Sun?
What is the corona?
400
The star Capella has a parallax angle of 0.08". The star Rigel has a parallax angle of 0.004". This one is the more distant star.
What is Rigel?
400
This is the spectral type of stars with the shortest main sequence lifetimes.
What is O?
400
This is the phase of stellar evolution immediately preceding the white dwarf phase.
What is a planetary nebula?
500
A body that is massive enough to be round, orbits the Sun, but shares its orbit with several similar sized bodies would be considered this.
What is a dwarf planet?
500
Sunspots, solar flares, and coronal mass ejections are manifestations of this.
What is the Sun's magnetic field?
500
Vega and Pollux have the same luminosity. Vega is a type A star while Pollux is a type K star. This star has the greater diameter.
What is Pollux?
500
This is the energy generation process for horizontal branch (or "yellow giant") stars.
What is helium fusion? (or What is the triple alpha process?)
500
Before collapsing into a neutron star, a massive star's core is composed largely of this element.
What is iron?