Solar System Objects
A superheated ball of gas and plasma
What is a star?
The inner layer of the sun where most of the energy exists as electromagnetic radiation
What is the radiative zone?
This is the only part of the electromagnetic spectrum that we can see
What is visible light?
A large cloud of dust and gas; the birthplace of stars
What is a nebula?
This is the type of galaxy that we live in
What is a spiral galaxy?
A large spherical object that orbits the sun
The layer of the sun where heated plasma rises and cooled plasma falls
What is the convection zone?
This type of wave has the longest wavelength
What is a radio wave?
This is the hottest and largest type of main sequence star
What is a blue star?
The unit of measurement used for the distance between distant astronomical objects
What is a light year?
A rocky object that orbits the sun in a belt between Mars and Jupiter
What is an asteroid?
The layer of the sun that is visible from Earth
What is the photosphere?
This type of wave has the shortest wavelength
What is a gamma ray?
This is the coolest and least bright type of main sequence star
What is a red star?
What is an irregular galaxy?
An object made of ice and rock that has a tail
What is a comet?
The energy source for the sun
What is nuclear fusion?
The term for the distance a wave travels before repeating
This star property is affected by distance and is measure by how the stars appear in our night sky
What is apparent brightness?
A rounded and slightly flattened galaxy
What is an elliptical galaxy?
The unit of measurement used for the distances between objects in our solar system; equivalent to the distance between Earth and the sun
What is an astronomical unit?
A stream of electrically charged particles that are emitted by the sun
What is solar wind?
The measure of how many full wavelengths pass a given point in a second; gamma rays has the highest
What is frequency?
The final stage of a low or medium-massed star's life
What is a white dwarf?
A large grouping of stars that all formed from the same nebula
What is a star cluster?