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xkcd #3063: Planet Definitions (xkcd.com)

submitted 11 months ago by schnurrito@discuss.tchncs.de to c/xkcd@lemmy.world

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Under the 'has cleared its orbital neighborhood' and 'fuses hydrogen into helium' definitions, thanks to human activities Earth technically no longer qualifies as a planet but DOES count as a star.

https://explainxkcd.com/3063/

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[–] Deebster@infosec.pub 32 points 11 months ago (4 children)

He's mixed up the first two diagrams - Pluto should be coloured in for the first and not for the second.

[–] cobysev@lemmy.world 13 points 11 months ago

He fixed it. They're swapped now.

[–] Donjuanme@lemmy.world 11 points 11 months ago* (last edited 11 months ago)

This is really really frustrating to me, very unlike Randal.

What's worse is he's got Neptune's moon highlighted in the first row

[–] teft@lemmy.world 8 points 11 months ago* (last edited 11 months ago)

Ultratraditionalist is messed up too. The sun and moon were considered planets when geocentrism was king.

It comes from the fact that the word planet comes from the Greek and means wanderer. Any celestial body that wandered around compared to the stars was considered a planet.

[–] Person264@lemmings.world 5 points 11 months ago (1 children)

The judgemental one has 7 coloured instead of 6 too.

[–] Deebster@infosec.pub 2 points 11 months ago

Good catch - he's updated the graphic but this is still wrong.