This graph plots the absolute magnitude of a star against its surface temperature
What is the Hertzsprung-Russell diagram?
The number of days it takes for Mercury to complete one orbit
What is 88 days?
The closest planet to the sun
What is Mercury?
The two tiny moons on Mars
What are Phobos and Deimos?
The only moon of Neptune visible with a moderately sized backyard telescope
What is Triton?
This is used to classify brightness of stars as we see them from Earth
What is apparent magnitude?
The time the red spot on Jupiter will be centered best for viewing
What is the red spot transit time?
What is nearly 12-years?
The only time when Mars looks good
What is very near opposition?
This crate was the landing site for the science lab Curiosity
What is the Gale Crater?
The number of categories within each class of stars
What is 10?
This marks the path that the sun appears to travel and is where the planets lie
What is the ecliptic?
This planet dominates the sky when near greatest elongation
What is Venus?
This planet is 8 times the diameter of Earth
What is Saturn?
This valley on Mars often fills up with fog and so appears almost white
What is Hellas?
The name given to double stars
What are binary stars?
Venus, the moon, and the sun shine brighter than this planet
What is Jupiter?
The time when a ring-less Saturn can be observed
What is edge-on?
What is the Cassini Division?
When Pluto is actually slightly closer to the sun than Neptune
What is near Perihelion?
This visual binary is the southernmost star in the Southern Cross
What is the Acrux?
The higher altitude clouds on Jupiter are primarily made of this
What is ammonia?
Name given to the four most visible moons of Jupiter
What are the Galilean satellites?
These two events of Venus are always separated by 8 years and only happen twice per century
What are transits?
The new class of objects that Pluto belongs to
What are Trans-Neptunian Objects?