The Enigmatic World of Brown Dwarfs: Failed Stars or Errant Planets? 

Great presentation. Thank you for taking the time :)

It may be two brown dwarfs encircling eachother that make up the celestial spiral AFGL 3068 nebula.

I would expect that some of the temperature of BD is from radioactive decay, just as inside the Earth and probably many other (if not all) planets.

Hmmm...she says brown dwarfs never, never, never, nevr fuse hydrogen. That to my knowledge is incorrect. Brown Dwarfs > 80 MJ do exist and at least one 90 MJ Brown Dwarf does fuse hydrogen in an unsteady way. So not in a steady way but these brown dwarfs are really as close to the boundary as you can get. Also for this reason, this BD does cool down (so it disappates more than it generates) but at a very slow pace. 50-100 K per 10^9 years. This particular BD is 10* 10^9 yr old (10 billion years) but still is 2300K. That is in fact still warmer than some L-type stars are. The coolest main sequence star we know of is 1939 K. So that is a lot cooler than this old, very low metallicity Brown Dwarf. Also I think some of the coldest main sequence stars do have clouds. They can already form at the M/L-type boundary and in the L-types we could have corundum clouds, Mg Silicate clouds. So the coldest manin sequence stars have clouds and I believe on even had a storm on it.

very interesting concepts of investigation - thank you for these insights!

Fascinating!

Please upload more videos.

Kindly also upload your Tonight 's sky video for the month of February 2024.

yeah I'll hit LIKE on this.

Only Bad Astronomers Forget Generally Known Mnemonics - Must Learn Them Young

🌞🤎

Please rethink removing theose first 4 minutes with all those contact infos etc., it's annoying as hell and it seems like you guys are stuck in the 90s...