I did project it’s motion forward and backward 3 million years (with the aggregate local simbad and gaia stars) and didn’t come up with anything: https://imgur.com/ow16W9y

More than 3 million years and a better galactic gravitational model than I am using would be needed 

On Nov 6, 2018, at 5:41 PM, Tim <xxxxxx@little-possums.net> wrote:

On Wed, Nov 07, 2018 at 01:10:40AM +0000, Phil Pugliese (via tml list) wrote:
Any idea how long it would take this to travel here?
Ob-Trav;A pre-Ancients artifact perhaps?

26 km/s is about 1/11000 of the speed of light, so on the order of
11000 years per light-year travelled.  Backtracking its motion and
those of known stars, the minimum would be on the order of a few
hundred thousand years.  Apparently its colour suggests that it hasn't
been in interstellar space for billions of years, but anything in
between is plausible.


- Tim
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