Tag Archives: M103 / NGC581

Deep Sky – October 2008 by Dave Owen

The constellation of Cassiopeia rises to considerable altitudes during the course of October evenings. There are a very large number of star clusters in this constellation that are easily visible in quite small telescopes. Although Charles Messier, in the 1780’s only noted two in his catalogue of around 100 nebulous objects; M52 and M103. William […] Continue Reading »

Pex Hill Observatory Telescope Tests, April/May 1999

Two reports, one from David Galvin and one from Rob Johnson, written in April/May 1999 when the Observatory at Pex Hill (now the Leighton Observatory) was suffering from strong vibrations. These reports cover some of the details of how the problem was resolved, and the first successful CCD imaging trial at the site. Continue Reading »