NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Compact Lightweight Metal Sextants - Freiberger Yacht vs. Astra IIIB
From: John Karl
Date: 2012 Aug 11, 14:06 -0700
From: John Karl
Date: 2012 Aug 11, 14:06 -0700
Jim,
With the prism scope and half-silvered mirror combo a star would not be dimmed. The horizon is simply imaged across the whole VOF, as shown in Fig 9.3 in my book. You get the best of both worlds -- terrestrial and celestial.
JK
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------