On August 24, 2006, only a week after suggesting that we might have a dozen planets, the International Astronomers Union declared that Pluto was no longer a full-fledged planet but rather a dwarf planet. That changed the answers to some basic trivia questions about our solar system and created some new facts, so this week let's honor (dishonor?) the anniversary of Pluto's demotion.
Pluto In Passing Questions
- Q1) What is the outermost planet?
- Q2) What is the smallest planet?
- Q3) Which planet's orbit is the least circular?
- Q4) What dwarf planet is larger than Pluto (either the scientific name or the common name is acceptable)?
- Q5) What is the innermost dwarf planet?
- Q6) What is the largest binary system in our solar system?
- Q7) Who discovered Pluto?
- Q8) What astronomer is Pluto partially named for?
- Q9) How many moons does Pluto have?
- Q10) What is the main component of Pluto's atmosphere?
- Q11) How long does it take Pluto to go around the sun?
- Q12) How long does it take Pluto to rotate once on its axis?
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