Next message: Frank R: "Re: Backyard winter sextant observatory?"
On 19 Apr 2005 at 18:53, Jim Thompson wrote:
> Oops, sorry, Ken, forgot the :) right back? <grin>
No worries, I laughed out loud when I read your reply.
I can sympathize as well. We had a pretty warm winter this year but I did
manage to shoot one lunar at -30°C. The lunar went OK (but I got a touch
of frost-nip on my face from the eyepiece) but while taking a time sight
afterward the water in my artificial horizon froze before I could get a
single altitude (Aldebaran, I think). I replaced it and took a lunar
altitude but again I only got 3 sights in before ice was forming. I would
guess the old land navigators had a similar problem with mercury.
Ken Muldrew.
