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It might become a full-blown quasar when the Andromeda Galaxy collides with the Milky Way ~4.5 billion years from now. We'd better take that into consideration
by kijin 8y ago
It might become a full-blown quasar when the Andromeda Galaxy collides with the Milky Way ~4.5 billion years from now. We'd better take that into consideration when we start planning for the death of our Sun ;)
- mirimir 8y agoBased on what we've observed, one could likely estimate the amount of accretion needed to make Sag A* visible from Earth. Or bright enough to fry us. It'd be a huge stretch for me to do that. But I bet that it's a lot less than Andromeda. I mean, there could be a substantial black hole, maybe 50-100 years out, and I doubt that we could detect it now :)