Posted by Graham Relf at 12:04 on 2011 Aug 03

Minor planet 372 Palma will be at opposition on 2011 Oct 21 while passing in front of M31 (Andromeda Galaxy). It might be interesting to take photos at, say, half-hourly intervals to form a trail.A chart showing the planet's path is here: britastro.org/computing/handbooks_charts.html