RoyalUr.net - Play the Royal Game of Ur (royalur.net) The Royal Game of Ur is one of the oldest board games in the world, with evidence of it being played by people who lived over 4500 years ago. That includes many play-urs enjoying the game today!
The Hipparcos parallax for Sirius is only accurate to about ±0.04 light years, giving a distance of 8.6 light years. Sirius B is generally assumed to be at the same distance.