Timeline for Which stars did the Sun form with?
Current License: CC BY-SA 3.0
14 events
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| S May 6, 2017 at 22:15 | history | suggested | user5434 | CC BY-SA 3.0 |
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| May 6, 2017 at 16:26 | review | Suggested edits | |||
| S May 6, 2017 at 22:15 | |||||
| Dec 6, 2016 at 21:40 | comment | added | bandybabboon | Today they published a report identifying radioactive isotopes typical of a low mass supernova within the meteorites of the solar system, whih are high enough to suggest that it was a supernova that compressed the dust cloud that made the solar system. It perhaps gives an idea of the force present in the beginning. | |
| Dec 6, 2016 at 21:29 | history | edited | bandybabboon | CC BY-SA 3.0 |
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| Dec 6, 2016 at 11:41 | comment | added | pela | @RobJeffries Yes, okay, I guess I was thinking of globulars, then. Thanks! | |
| Dec 6, 2016 at 11:08 | comment | added | ProfRob | @pela 10 km/s would be a globular cluster. Which is not typical. In fact, forming in a bound cluster at all is not typical. The velocity dispersion of typical star forming region is 1 km/s and they are unbound. | |
| Dec 6, 2016 at 11:00 | comment | added | pela | @RobJeffries: Really? Isn't it more like 10 km/s? | |
| Dec 5, 2016 at 22:14 | comment | added | ProfRob | A typical dispersion speed for a stellar cluster is more like1 km/s. | |
| Dec 5, 2016 at 21:18 | history | edited | bandybabboon | CC BY-SA 3.0 |
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| Dec 5, 2016 at 21:17 | comment | added | bandybabboon | Hi, sorry of course you are right. When a star travels 23km/s from us, i.e. proxima centauri i.e. light years per million years, it can still have travelled vast distances through the galaxy. I was busy being embarassed that i can't find the journal article i read on Teegarden's star to cite, that i didn't phrase it properly. | |
| Dec 5, 2016 at 21:08 | history | edited | bandybabboon | CC BY-SA 3.0 |
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| Dec 5, 2016 at 19:15 | comment | added | pela | Except in the rare case of a star reaching the escape velocity of the galaxy due to a close encounter with another star (or in the case of violent galaxy-galaxy merger), stars don't in general leave their host galaxy, and so can't be million of lightyears apart. Stars from the cluster in which the Sun was born drift apart but will still orbit the center of the Galaxy, and won't end up more than 50,000 lightyears from each other (the diameter of the orbit of stars at the distance of the Sun from the Galactic center), or at the very most 100,000 lightyears (the diameter of the Milky Way) | |
| Dec 4, 2016 at 23:36 | history | edited | bandybabboon | CC BY-SA 3.0 |
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| Dec 4, 2016 at 23:00 | history | answered | bandybabboon | CC BY-SA 3.0 |