Measuring Space
What force keeps the planets and moon in orbit?
Gravity
A ball of plasm that experiences nuclear fusion in its core.
A Star
The number of different types of galaxies.
3
The location and color of the coldest stars plotted on a HR Diagram.
To the right and red
The movement of energy through a medium from one place to another, how we measure the EM Spectrum
Waves
A unit of length equal to the distance that light travels through space in one year
Light Year
The majority of stars fall into this classification, including our Sun.
Main Sequence
The name of our spiral galaxy
The Milky Way
The term used for how bright a star is, it runs up the y-axis of the HR Diagram
Luminosity
The distance from any point on one wave to a corresponding point on the next wave
Wavelength
A system of billions of stars, gas, and dust held together by gravity.
Galaxy
A left over object after a supernova that is a very dense area of gravity so strong that not even light can escape.
Black Hole
Arms
On a Hertzsprung-Russell Diagram, the Sun is this luminosity identifying it as having medium luminosity.
1
The wavelength of the EM that we can see
Visible light
The nearest star to Earth
The Sun
The birthplace of stars. A cloud of dust and gas in space.
Nebula
A galaxy with no distinct shape
Irregular
A star that has high luminosity is generally going to be small, medium, or large.
Large
The names for the top and bottom of a wave
Crest (top) and Trough (bottom)
How bright an object is to someone looking at it from the Earth.
Apparent Magnitude
This classification of star will end up causing a supernova.
Supergiant
The oldest type of galaxy, it is shaped like a football
Elliptical Galaxy
This type of star is the last stage of life for most stars and contains the oldest stars
White Dwarf
The type of electromagnetic energy that we use to examine objects in space
The entire EM Spectrum