Post AZsu6GdXteLtIsUtiC by yacc143@mastodon.social
(DIR) More posts by yacc143@mastodon.social
(DIR) Post #AZnqxMLMThZ5ZOaOBs by stux@mstdn.social
2023-09-15T21:00:17Z
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Many people still don't like the fact that Pluto is now classified as a dwaft-planet instead of a 'full' planet but it makes sense, otherwise we would have a lot more 'planets' in our solar systemHere are some objects in the Kuiper Belt, the region where Pluto is and as you see many of them are as 'large' as Pluto itself(Image: NASA - https://pluto.jhuapl.edu/Arrokoth/About-the-Kuiper-Belt.php)
(DIR) Post #AZnrHTGWS5dipUudH6 by madoka@donphan.social
2023-09-15T21:04:02Z
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@stux planet! planet! planet!https://www.youtube.com/watch?v=N4U6inRTaow
(DIR) Post #AZnrIoZAk2sJBNHCMq by elmarotter@mastodon.green
2023-09-15T21:04:16Z
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@stux But what's the problem having them as planets? I would welcome them. Otherwise dwarfs ar ofcourse alway welcome!
(DIR) Post #AZnrarmfW7YqNHCHGC by stux@mstdn.social
2023-09-15T21:07:33Z
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@elmarotter I don't care! :blobcatgiggle: Maybe it would be better to have them as "planets", that way we at least learn about them in school
(DIR) Post #AZnrdXHYCPItepulns by neal@social.typica.us
2023-09-15T21:07:57Z
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@stux The main problem is when people (generally not planetary scientists) insist that "dwarf" somehow means "not". Personally, I'm fine with unlimited planets (where would we be if biologists decided there were just too many species?), but what's up with lumping gas giants in with planets? Jupiter doesn't even properly revolve around the sun (too massive).
(DIR) Post #AZnrfzJExuyHA5sGXY by stux@mstdn.social
2023-09-15T21:08:21Z
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@madoka :blobcatgiggle: ohh yes :jerrytalk: We all know how that turned out! :jerryscream: :jerryroll: :rickhey: :mortysmile: :portal:
(DIR) Post #AZnrmiuYKdakKZXS5o by stux@mstdn.social
2023-09-15T21:09:42Z
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@neal haha indeed :blobcatgiggle: It just means "somewhat smaller planet" nothing less :flan_laugh: uhhh Objects like Jupiter are "failed stars" or Gass Giants
(DIR) Post #AZnrnD2OK3gflZR8TY by trebach@functional.cafe
2023-09-15T21:09:31Z
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@stux Somewhere on the order of 110-120 planets I heard
(DIR) Post #AZnrpxc47xEanRR1gO by stux@mstdn.social
2023-09-15T21:10:18Z
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@trebach Good chance! :blobcatgiggle: IF not more..I mean, how much have we explored that place haha
(DIR) Post #AZnrzvb2TncNRDhvsm by stux@mstdn.social
2023-09-15T21:12:05Z
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@ciela :blobcatgiggle: i believe so yes!And they have to orbit a star i believe, otherwise it would be a rogue-dwaft-planet 🤔 Maaaaybe mass but im not sure
(DIR) Post #AZnsRhUWW1aXnfu2ng by soupystorm@mindly.social
2023-09-15T21:17:08Z
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@stux Eris is a planet too
(DIR) Post #AZntS2GfMw1GBw93IW by jonas_trostle@mastodon.online
2023-09-15T21:28:25Z
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@stux My quibble is that they could have gone with1. is in orbit around the Sun2. has sufficient mass to assume hydrostatic equilibrium (a nearly round shape)3. has an atmosphereand had all the same planets as before. Instead they went with "clearing the neighbourhood" specifically to exclude Pluto.
(DIR) Post #AZntgFaedKTzZ3GxGa by neal@social.typica.us
2023-09-15T21:30:58Z
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@stux I'll double down and assert that exo also doesn't mean not, further pushing the planet count into the realm of more than we'll ever know about.
(DIR) Post #AZnuinVjaWSvIhkXDM by elmarotter@mastodon.green
2023-09-15T21:42:13Z
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@stux whatever they desite: they are welcome! 😄
(DIR) Post #AZnyAodfHu16lmVjH6 by SharkAttak@masto.ai
2023-09-15T22:21:13Z
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@stux First spotted, first served. Sorry, I don't make the rules.Moreover, unlike those other boring grey potatoes, Pluto has a HEART on it! It's special!
(DIR) Post #AZo9jIxgAnAmC6pKcq by vitriolix@mastodon.social
2023-09-16T00:30:48Z
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@stux I never realized so many moons had moons
(DIR) Post #AZoAPl0sGhcJMCZ31E by Ttown@mstdn.social
2023-09-16T00:38:28Z
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@stuxAck! More names to learn!
(DIR) Post #AZoXb0THQwLbQmBTE0 by jeffc@mastodon.online
2023-09-16T04:58:09Z
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@stuxWhat confuses me is that the definition doesn't work the way grammar normally works. A "dwarf lemon tree" is a type of lemon tree: it fits the definition of lemon tree with the additional trait of dwarfism.A dwarf planet, though, isn't a type of planet. For example, it doesn't clear its orbit. Neither is a rogue planet (no orbit to clear). And goodness knows whether any given exoplanet is a planet.
(DIR) Post #AZpCQBXg1nhshaCPL6 by robert@spacey.space
2023-09-16T12:35:36Z
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@stux What’s wrong with having a bunch of planets? “Big enough to be round, too small to burn hydrogen” is arguably a more useful definition than one which depends on orbital characteristics. This author made the space podcast rounds awhile back and I think he makes a great case:https://www.sciencedirect.com/science/article/pii/S0019103521004206
(DIR) Post #AZqPpT7zH7eP2pWt3w by paul_ipv6@infosec.exchange
2023-09-17T02:40:22Z
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@stux aren't we being told all the time that size doesn't matter? :)
(DIR) Post #AZqRO1XTwQovZLUlrk by shyduroff@mastodon.mit.edu
2023-09-17T02:58:00Z
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@stux … +++ … also, hmmm … and, again, and again, sigh is not a big enough word …
(DIR) Post #AZqkbgxz7n0Qwp7gCu by dancingtreefrog@mastodon.social
2023-09-17T06:33:25Z
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@stux So...what's wrong with having MORE planets?
(DIR) Post #AZsu6GdXteLtIsUtiC by yacc143@mastodon.social
2023-09-18T07:29:08Z
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@stux Ah, but by your argument, you have just listed a good dozen of objects that should be called dwarf-planet, right?
(DIR) Post #AabdjCbiUgsLShlUhc by jdnicoll@wandering.shop
2023-10-09T21:27:45Z
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@stux Why do worlds smaller than Neptune and Uranus count as true planets?