A Harvard Astronomer on the Interstellar Object ‘Oumuamua

Re:A Harvard Astronomer on the Interstellar Object ‘Oumuamua by wlesieutre on Wednesday January 16, 2019 @03:46PM (#18924977)

Good point. A quick google gives 537 km/s as the Milky Way's escape velocity, or 1,201,000 mph. Not going fast enough for that.

Moot point for Andromeda since that's coming here, but it'll never ever get to any other galaxies.

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Re:A Harvard Astronomer on the Interstellar Object ‘Oumuamua by stmfreak on Wednesday January 16, 2019 @06:55PM (#18926895)

Voyager’s stated velocity is relative to the solar system, which imparts its own velocity relative to the Milky Way to Voyager. Another quick google suggests Sol is swinging around the galaxy at 200 km/s so Voyager’s 17 km/s is really nothing.

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Re:A Harvard Astronomer on the Interstellar Object ‘Oumuamua by wlesieutre on Wednesday January 16, 2019 @08:20PM (#18927460)

Also depends on whether Voyager's velocity is in a useful direction, it could just as easily be counterproductive. But not much difference either way.

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