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How many moons do Neptune planet have?
Why did you want to become an astronomer?
Which of the constellations cannot be seen in the summer sky of the northern hemisphere?
The persied meteor showers are viewed in the state of maine during what month?
The kappa cygnids and the northern delta aquarids are names for what phenomena?
What are the scientific names for the two regions of a sunspot?
What term is most commonly used to refer to the actual motion that stars have in relation to each other, and over many years will lead to changes in the shapes of constellations?
What percent of stars in the sky that appear to be single stars are actually binary stars?
Most astronomers believe that these celestial bodies are at the center of quasars and are the main reason for their large energy emissions?
All of saturns moons are composed predominantly of what substance?
The apparent speed of the sun along the ecliptic is known as?
What substance is responsible for neptunes blue-green color?
Whos book, titled concerning the revolutions of celestial spheres, is considered to mark the birth of modern astronomy?
A solar eclipse can only occur at?
If the temperature of a star increases from 10,000k to 30,000k, by what factor will the rate of energy radiated per second increase?
