Planets
The "Goldilocks Effect" or perfect place for a planet
What is the Earth?
Stars are composed almost entirely of these gases.
What are hydrogen and helium?
This colour reflects a very hot star.
What is blue?
This is the measure of a star's brightness seen from Earth.
What is apparent magnitude?
A large cloud of gas and dust.
What is a stellar nebula?
They are rocky, dense, and relatively small.
What are the terrestrial planets?
The Milky Way is this type of galaxy.
What is a spiral?
This the color of the Sun.
What is a yellow star?
The measure of a star's actual luminosity.
What is absolute magnitude?
This force pulls particles in a nebula closer together.
What is gravity?
The four planets that orbit farthest from the Sun.
What are the gas giants?
Energy produced in a star leaves it in a few ways.
What is visible light, other forms of radiation, heat, and even wind?
BILLIONs of stars are bound together by gravity.
What is a galaxy?
The Sun's radius is approximately this much greater than the Earth's.
What is approximately 109 times?
The hot dense mass remaining from the collapse of a low-mass star.
What is a white dwarf?
This planet has more than 60 satellites.
What is Jupiter?
Stars can be very small or huge.
What is a white dwarf and a supergiant star?
This surface of the Sun is what we see from Earth.
What is the photosphere?
The star magnitude scale may seem backward.
What is a very bright star with a negative measure of luminosity?
A high-mass star collapses and forms a.
What is a supernova?
This graph shows relationship between a star's temperature and its luminosity.
What is the HR Diagram?
This single point is the result of the collapse of a massive supergiant star.
What is a blackhole?