Comment on Science fact
anindefinitearticle@sh.itjust.works 1 week agodated 1997
Here they are on Wikipedia’s list of Y-class brown dwarves.
Jupiter and Saturn are in fact brown dwarves.
Stellar classes are OBAFGKMLTY, from most to least massive.
FlyingSquid@lemmy.world 1 week ago
Did you even read that page you linked to? Right at the top, it says:
anindefinitearticle@sh.itjust.works 1 week ago
Yes.
Y dwarf stars are a mix of what was previously classified under those mass classifications.
FlyingSquid@lemmy.world 1 week ago
“Y dwarf stars” are not even a thing!
Neither brown dwarfs nor planetary-mass objects are stars.
Are you just a troll?
anindefinitearticle@sh.itjust.works 1 week ago
They are!
Electromagnetically and gravitationally and chemically they act like stars.
Gas giant simulations are often performed by stellar codes such as mesa. Stellar physics and stellar simulations with fusion turned off. Morphologically, they are stars. We should move on from the cold war brain’s fusion chauvinism.
They are fundamentally different objects than planets. They have their own planetary systems. They’re stars, just unlit.
Juno gravity results imply Jupiter’s core is dissolved hydrogen plasma sludge, also known as the dilute core model. Kronoseismology (using saturn’s rings as a seismograph; Cassini read it like a DVD) implies the same is likely true for Saturn due to the discovery of g-mode waves mixing with the f-mode signal detected by ring occultations.