Stars
We can learn about these two components of stars by analyzing starlight.
What is a star's composition and its temperature?
This is a measure of how bright a star appears to be to an observer on earth.
What is apparent magnitude?
This type of star is more luminous and have diameters from 10-100 times greater than our sun.
What are giant stars?
Atoms are mostly this.
What is empty space?
This is the point in space where light collects and forms the smallest brightest circle of light.
What is the focal point?
These wavelengths of light are emitted most intensely from the sun.
What is green and yellow?
This is a measure of how bright a star would be if all stars were at the same distance.
What is Absolute Magnitude?
These are giant stars greater than 100x the size of the sun and a cooler temperature wise and are very luminous.
What are super giants?
A continuous spectrum is also called this.
What is a Blackbody spectrum?
This is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles.
What is a pulsar star?
This type of diagram plots luminosity of stars against their surface temperatures.
What is H-R diagram? What is the Hertzsprung-Russell diagram?
This shift occurs when a distant object or a distant galaxy is moving away from earth.
What is a redshift?
Stars form from this which collapses and begins to spin more rapidly and assume the shape of a spinning disk.
What is a nebula?
The lower the apparent magnitude number the ________ the brightness of the star.
What is higher?
This is discoverable by comparing known emission lines to an unknown emission line.
What is elemental makeup?
Star masses are expressed as multiples of the suns mass this is referred to as this.
What is one solar mass? or What is solar mass?
This is an increase or decrease in wave frequency that occurs as the source and the observer move toward or away from each other. Explains redshift and blueshift.
What is the Doppler Effect?
This is the distance we place stars at to determine absolute magnitude.
What are 10 parsecs?
This type of energy source produces a continuous spectrum after passing through a prism.
What is a hot dense energy source?
This is created when a red supergiant collapses in on itself it can lead to a black hole or a neutron star.
What is a supernova?
All main sequence stars are actively fusing this element into this element.
What is Hydrogen into Helium?
This is a unit of distance used in astronomy equal to 3.26 light years or 3.086 x 10^13 kilometers.
What is a parsec?
This population type of star contains a lot of heavy atoms and are younger.
What is population 1 stars?
This is emitted from an atom when an electron moves from a higher energy level to a lower energy level.
What are photons?
This is created when a red giant collapses and this precedes a white giant.
What is a planetary nebula?