She moved my hand slowly over the dark water and spoke in her methodical way, no use to interrupt her. “20 degrees south-east of the belt of Orion, you see, there is the brightest star in the night sky, right in the constellation of Canis Major.” She waited for a moment for me to catch up with her. Our entwined hands travelled over the night sky and stopped. And there it was, deep underneath us, the brightest star of the night sky, as far as I could see. “Do you see this star?” she asked. “It is called Sirius. It is 23 times more luminous than our sun, twice the mass and the diameter of the sun. It is only 8.5 light years away.” The way she said “only 8.5 light years”, it sounded as if she was talking about a Sunday picnic destination.