Just How Do Astronomers Measure Distances?

William Stewart, who is a founder member of South Cheshire Astronomical Society, will give this talk, in which he will explain how astronomers (from the ancients to modern man) measure distances within and beyond the solar system.  It is a journey through history, covering everything from the size of the Earth and the Moon, our own Milky Way galaxy, to the size of distant galaxies. It was very well received at HLCO (High Legh Community Observatory).