4 ms·

And they excluded Pluto! Guess it's just a faint memory now :(

• dilyevsky 6y ago
  All planets are aligned within a few degrees actually. Pluto’s orbit is angled quite a bit if i recall correctly (which maybe was one of the reason to kick it out?)
  • TeMPOraL 6y ago
    The main reason is that Pluto is an outlier by size, and then we've discovered many more similarly-sized objects...
    • MayeulC 6y ago
      Also, pluto hasn't cleared its orbit (yet) https://en.wikipedia.org/wiki/Clearing_the_neighbourhood https://en.wikipedia.org/wiki/Clearing_the_neighbourhood