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| Betelgeuse the star |
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| David Hess:
--- Quote from: GlennSprigg on January 26, 2020, 12:43:24 pm ---Betelgeuse is (was?) a Giant, but not particularly Hot. There is no particular reason why it's mass should 'collapse' into a Super Nova etc. (Of course it may have died out a long time ago!). --- End quote --- Betelgeuse is in its helium burning stage so its core is very hot and small which is why the outer envelope is so large. There is every reason to expect it to become a supernova and produce a neutron star in the next 100,000 years at the soonest but consider that that is 50 times longer than recorded history so do not hold your breath waiting for it. --- Quote ---Our own gaseous 'Jupiter' could/should have been another 'Sun' but wasn't big enough to 'ignite'. --- End quote --- Jupiter is not even large enough to be a brown dwarf which can be distinguished by lack of lithium which gets fused in a significantly larger gas giant. |
| iMo:
It would be great if it explodes next weeks. I always wanted to see exploding supernova.. 8) CNN wrote they detected gravitational waves 2w back. https://edition.cnn.com/2020/01/25/world/betelgeuse-star-dimming-scn-trnd/index.html --- Quote ---Then, LIGO, the Laser Interferometer Gravitational-Wave Observatory, detected gravitational waves on January 14 that seemed to come from the direction of Orion. --- End quote --- Does the LIGO detector actually work reliably? |
| nctnico:
--- Quote from: imo on January 27, 2020, 12:10:54 pm ---It would be great if it explodes next weeks. I always wanted to see exploding supernova.. 8) --- End quote --- Same here. Would be awesome if it is close enough to get a bit of summer in the winter :popcorn: |
| TERRA Operative:
Mmmmmm gamma ray burst. Makes my bones smell like burning. Good tan though (on my bones that is). |
| Gyro:
--- Quote from: nctnico on January 27, 2020, 12:31:34 pm --- --- Quote from: imo on January 27, 2020, 12:10:54 pm ---It would be great if it explodes next weeks. I always wanted to see exploding supernova.. 8) --- End quote --- Same here. Would be awesome if it is close enough to get a bit of summer in the winter :popcorn: --- End quote --- Well I hope it waits until it stops raining and we have clear skies - June would be about right! :D |
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