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How many of these questions can you answer correctly?

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1. How many planets are in the Solar System?
2. What is the fifth planet from the Sun?
3. What is an astronomical unit?
4. How many terrestrial planets are in the Solar System?
5. What can be found between Mars and Jupiter?
6. Why was Pluto "demoted" as a planet?
7. What kind of star is the Sun?
8. What is the hottest planet in the Solar System?
9. What is the surface temperature of that planet?
10. Earth is located within the circumstellar habitable zone, which is frequently referred to as what?
ByronTheRefinedMan · 100+, M Best Comment
1. Three
2. Sputnik
3. amphere
5. The Earth

JoyfulSilence · 46-50, M
I answered from memory, without looking at other replies here, or Googling anything.
1. Eight
2. Jupiter
3. The mean distance from the Sun to the Earth.
4. Four
5. Asteroid Belt
6. Objects were found further out that were larger than Pluto, and people did not want to have to call them planets.
7. I am not sure what the spectral class number is.
8. Venus, if we are just talking about the upper atmosphere or surface. But I bet Jupiter has the hottest core.
9. Maybe 700 degrees F?
10. Goldilocks Zone
Arithmoman · 36-40, M
@JoyfulSilence Good job! 700 degrees Fahrenheit is very close. The surface temperature is 900 degrees Fahrenheit. The runaway greenhouse effect has caused it to have a higher surface temperature than Mercury.

Also, Pluto crosses the orbit of Neptune. I think that was one of the reasons for the declassification.
Adstar · 56-60, M
Ok off the top of my head,, I did not look up the internet for answers..

1) 8
2) Jupiter
3) Different ones.. Parsec is one.. hope i spelt that correctly
4) four
5) A belt of asteroids.. Maybe created when two small planetoids collided..
6) They found a number of Pluto sized worlds beyond Pluto so decided to create a new classification demoting Pluto to the status of a minor planetoid..
7) A yellow medium star..
8) Venus
9) Don't know the exact range but i know it is higher then the melting temperature of lead..
10) The goldilock zone
Arithmoman · 36-40, M
@Adstar Nailed it!
Adstar · 56-60, M
@Arithmoman Thanks.. 🤗
KiwiBird · 36-40, F
Thirteen if you count the 'five dwarf planets'.
Jupiter
A fucking big one
Four
Space
It was found to be a Dog
Yellow Dwarf
Venus
400C
No idea
Arithmoman · 36-40, M
@KiwiBird Yes, Pluto is a dog, far from being a fucking big one, too. Nice work!
Gusman · 61-69, M
8
Saturn
Distance from Earth to the Sun
4
?
Too small
?
Venus
?
Goldilocks Zone
Arithmoman · 36-40, M
@Gusman Good job!
Gusman · 61-69, M
@Arithmoman I knew there were rocks between Mars and Jupiter but the name eluded me. 😐
Arithmoman · 36-40, M
@Gusman Yes! There's another asteroid belt farther out called the Kuiper Belt. It's massive!
Wallflow3r · F
I just got reminded how dumb I am shit.
Arithmoman · 36-40, M
@Wallflow3r Some of these are pretty difficult. You're not dumb.

 
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