NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Jupiters moons and time/longitude
From: Bruce J. Pennino
Date: 2014 Jun 7, 23:53 -0400
Bruce
From: Bruce J. Pennino
Date: 2014 Jun 7, 23:53 -0400
Regarding Cook/Endevour, and other great voyages of exploration, I need
some summer reading especially about Cook. Recommendations would be much
appreciated.
Thanks in advance!
Bruce
From: Stan K
Sent: Saturday, June 07, 2014 10:11 PM
Subject: [NavList] Re: Jupiters moons and
time/longitude
Francis,
There are no cheap 4 inch refractors. Are you sure it wasn't a 2.4 inch?
Stan
There are no cheap 4 inch refractors. Are you sure it wasn't a 2.4 inch?
Stan
-----Original
Message-----
From: Francis Upchurch <NoReply_Upchurch@fer3.com>
To: slk1000 <slk1000---.com>
Sent: Sat, Jun 7, 2014 9:17 pm
Subject: [NavList] Jupiters moons and time/longitude
From: Francis Upchurch <NoReply_Upchurch@fer3.com>
To: slk1000 <slk1000---.com>
Sent: Sat, Jun 7, 2014 9:17 pm
Subject: [NavList] Jupiters moons and time/longitude
Just got a wonderful 5 inch Newtonian reflector as a retirement present and
plan lots of star gazing, including re-set my mechanical watch (grandads circ
1940) via Jupiter moons a la Cook et al Endevour. Tried it a few years ago
with a cheap 4 inch refractor ,but mostly minutes (time ) out). Anybody had any
success and /or advice? I found lunars more accurate so far, but hope this
better telescope may improve things? Obviously land based method, unless anyone
has ideas re gyro stabalized mount for telescope? The thought had occured, bit
like the various crazy chairs tested by the longitude board! Do you think the
time may be ripe for another go at this?
Francis
