This celestial object has a mass of approximately 1.99x10^30 kg and a radius of 6.96x10^8 meters, making it the largest celestial object in the solar system.
What is the Sun?
100
This type of star consists of two stars orbiting a common center.
What is a binary star?
100
This is the distance traveled by light in one year.
What is a light year?
100
This is the number of contellations making up the astrological zodiac.
What is 12?
100
This is the 7th planet from the Sun.
What is Uranus?
200
This planet's orbit is the most elliptical of any in our solar system.
What is Mercury?
200
This type of star is a normal star that is undergoing nuclear fusion of hydrogen into helium.
What is a main sequence star?
200
This is the most common measurement for long distances in astrophysics.
What is a parsec?
200
This star Polaris also has this name.
What is the North Star?
200
This is a collection of a very large number of stars mutually attracting each other through a gravitational force and staying together.
What is a galaxy?
300
These two planets are the only two in our solar system that do not have any moons.
What are Mercury and Venus?
300
This type of star is the evolution of a main sequence star as it nears the end of its life.
What is a red giant?
300
This is the average distance between stars in a galaxy.
What is one parsec?
300
This type of position of stars and constellations remain unchanged.
What is the relative position?
300
This is the closest star to Earth.
What is Proxima Centauri?
400
The astroid belt is located between the orbits of these two planets.
What are Mars and Jupiter?
400
This type of star is the result of a red giant throwing off mass and condencsing into a very small, very dense, low luminosity star.
What is a white dwarf?
400
This is the average distance between galaxies in the same cluster.
What is about 100 kpc?
400
This is the huge sphere surrounding and rotating around the Earth on whose surface the stars and constellations are firmly embedded.
What is the celestial sphere?
400
This is a small body of mostly ice and dust orbiting a larger body in an elliptical orbit.
What is a comet?
500
This planet has the most number of moons out of any in our solar system.
What is Saturn?
500
This type of star is a rapidly rotating neutron star emitting electromagnetic radiation in the radio region.
What is a pulsar?
500
This is how many light years are in one parsec.
What is about 3.26?
500
This is the change in degree of the Earth's direction after each night.
What is 0.986 degrees?
500
This is the 4th largest planet in our solar system.