Timeline for Could a black hole pass quiescently through the Oort cloud?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 8, 2018 at 16:48 | vote | accept | Mark Foskey | ||
| Oct 8, 2018 at 6:38 | answer | added | ProfRob | timeline score: 9 | |
| Oct 8, 2018 at 0:36 | comment | added | Mark Foskey | Hmm, @MikeHarris, at half a light year the effect on the planets would be 64x that of Alpha Centauri, based on a crude 1/r^2 argument. I think any effect would be pretty subtle. | |
| Oct 8, 2018 at 0:31 | history | edited | Mark Foskey | CC BY-SA 4.0 |
Clarified intent based on comments.
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| Oct 7, 2018 at 18:14 | comment | added | userLTK | I would think that the WISE survey would observe it by gravitational lensing as well, considerably before it reached 1/2 light year. That also doesn't answer the question. | |
| Oct 7, 2018 at 15:00 | history | tweeted | twitter.com/StackAstronomy/status/1048951144410697728 | ||
| Oct 7, 2018 at 14:10 | comment | added | Mike Harris | I imagine if it had similar mass to the sun and passed that close, there would be some serious (or at least detectable) perturbations in the planetary orbits. This doesn't address your question about detecting radiation, so it's a comment, not an answer. | |
| Oct 7, 2018 at 0:38 | history | asked | Mark Foskey | CC BY-SA 4.0 |