This star is the MOST similar to our sun in mass, luminosity, and color.
What is Alpha Centauri?
This word means the brightness or intensity of a star's light.
Luminosity
This planet has the slowest period of rotation.
What is Venus?
This planet takes 164.8 Earth years (365 days = 1 Earth year) to orbit around the sun once!
What is Neptune?
These are the intermediate stages of a star's life cycle
What are giant and supergiant stars?
These 4 planets have the highest densities in the solar system.
What are Earth, Mars, Mercury and Venus?
This is the currently accepted age of the universe
13.8 billion years ago
A star's luminosity is always proportional with this property
What is mass?
What is the temperature?
These stars are among the hottest and smallest in the universe.
What is a white dwarf star?
This explosive event occurs at the end of a high mass star's life, leaving behind the ingredients for new stars and planets
What is a supernova?
Of all the planets in the solar system, Saturn has the lowest in this characteristic
What is density?
4.5 billion years ago, this occured.
What is the formation of the Solar System?