Monday, February 13, 2017

you are here, precisely

Astronomers at the Dunlap Institute for Astronomy & Astrophysics, University of Toronto, using recent data from the ESA Gaia probe, increased the precision of the Sun's speed and distance measurements. The Sun is orbiting the core of the Milky Way galaxy at 240 km/sec and is almost twenty-six thousand light-years from the centre. The article at the DI web site also says there was a dearth of stationary stars which seems to make sense: they would have been pulled into the Sagittarius A black hole.

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