Astronomy
June 17th, 2015 at 11:15:51 AM permalink | |
Ayecarumba Member since: Oct 24, 2012 Threads: 89 Posts: 1744 |
Hmm, I did some checking, and you are both correct that the effects of gravity will remain constant over the solar system's current orbits if the sun were compressed. However, the orbits of the planets will change when the sun goes red giant, as it will lose mass during the transition to that stage (e.g., the Earth will move out to where Mars is now). |
June 17th, 2015 at 1:00:49 PM permalink | |
Dalex64 Member since: Mar 8, 2014 Threads: 3 Posts: 3687 |
I'm not sure if you are forgetting about the mass/energy equivalence or not. This page talks about how much mass the sun loses every day due to mass being turned into energy and being radiated away: http://solar-center.stanford.edu/FAQ/Qshrink.html
now, IMO "disappears as pure energy" is poorly worded, especially considering that it is believed to take 1,000,000 years for a photon to escape the sun. "Everyone is entitled to his own opinion, but not to his own facts." Daniel Patrick Moynihan |
June 17th, 2015 at 1:04:25 PM permalink | |
Dalex64 Member since: Mar 8, 2014 Threads: 3 Posts: 3687 |
Interesting thing related to that, from http://www.universetoday.com/12648/will-earth-survive-when-the-sun-becomes-a-red-giant/
"Everyone is entitled to his own opinion, but not to his own facts." Daniel Patrick Moynihan |
June 17th, 2015 at 2:01:04 PM permalink | |
Nareed Member since: Oct 24, 2012 Threads: 346 Posts: 12545 |
No, but a mass particle would drain the Sun of mass sooner.
Some of the energy produced by the fusion reaction stays within the Sun. Photons take long to leave because they are refracted, absorbed, reemitted, etc. some of the heat remains, too, which heats up the hydrogen before it gets fused. Donald Trump is a one-term LOSER |
June 21st, 2019 at 4:19:15 PM permalink | |
petroglyph Member since: Aug 3, 2014 Threads: 25 Posts: 6227 | https://www.ibtimes.co.in/big-bang-theory-wrong-universe-itself-exists-inside-gigantic-higher-dimensional-black-hole-799674?fbclid=IwAR0-gSoMnS68z3suEregoWJKjUxCq10xIqx_hm1MJ8rdV9bKmr7yEkY3O80 Alternative hypothesis to the Big Bang. The last official act of any government is to loot the treasury. GW |
June 22nd, 2019 at 12:27:02 PM permalink | |
rxwine Member since: Oct 24, 2012 Threads: 189 Posts: 18747 |
Maybe someone will create a nice animation of this. You believe in an invisible god, and dismiss people who say they are trans? Really? |