The aim of the Messier Marathon is to observe as many Messier objects as possible in one night, so this event will start earlier than our usual observing events and could, weather permitting, last all night. It's likely to be cold so you'll need to come prepared (warm clothes, flasks of hot drinks, etc.).
Jeff and Tony will post details...
Added: Details are in Behind the Scenes (http://forum.orpington-astronomy.org.uk/index.php/topic,2232.0.html). If you can't read that thread then please either ask Jeff or TonyG at the meeting on Thursday, or send TonyG a private message.
Details on behind the scenes or PM me.
Tony G
Just a reminder, if you're an OAS member and you can't see behind the scenes send a message to either Rick or myself with your membership number and we'll add you to the list.