November 2006 Astronotes 1 Candles in the Dark Image Credit: Wikipedia.org By Colin Johnston, Science Communicator Since the mid-ninteenth century astronomers have used the principle of parallax to measure the distance to other stars. ... How then can we tell, for example, that M31, the galaxy in Andromeda, is 2.2 million light years away? It would be straight-forward to tell how far away a star was if it was exactly the same brightness as our own Sun. ...

MINUTES OF THE ANNUAL VISITATION BY THE BOARD OF GOVERNORS HELD IN THE OBSERVATORY BOARDROOM AT 10.40 A.M. ON 23 MARCH 2012 Present: His Grace, the Most Reverend A.E.T. Harper (Chairman), Canon W.M. Adair, Mr W.G. Berry, Dean G. Dunstan, Archdeacon R.G. Hoey, Professor R. Oudmaijer, Canon R.J.N. Porteus and Professor S. Smartt Canon J.N.T. Campbell, Canon J.W. McKegney, and Canon C.F. Moore Dr T. Mason, ... MINUTES BOARD OF GOVERNORS 23 March 2012 Page 8 5. ...