Astronomy by Numbers

Can you pick the right number (1, 2, 3, or 4) for each of these astronomical facts?

Forced Order Answers have to be entered in order
Wrong Answers Some wrong answers will appear in red
Question1, 2, 3, or 4
Planets without moons
Dwarf planets in the asteroid belt
Terrestrial planets
Planets with rings
Stars in our solar system
Approximate distance in light minutes from Earth to Mars (at closest approach)
Voyager probes
Countries that have put a man on the Moon
Callisto's ranking when ordering moons from largest to smallest
Crab Nebula designation: Messier ___
Question1, 2, 3, or 4
Constellations larger than Ursa Major
People killed in the Apollo I disaster
Planets smaller than Earth
Planets whose satellites are named for characters in English literature
Approximate distance in light years from the Sun to Proxima Centauri
Number of telescopes at the W.M. Keck Observatory
Galilean moons of Jupiter
Moons that are larger than Mercury
Number of constellations that begin with 'V'
Number of mirrors in a Newtonian telescope

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