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Re: Sextant manipulation
From: Ken Gebhart
Date: 2017 Jul 11, 22:36 -0500

Mark,

I am new to the methods you describe. It may be that you are the first person to contribute such experience to the accurate taking of sextant sights. I am familiar with many books on the subject, and I have never encountered the techniques you describe. So, should we tell the World about your discovery? since use of your eyecup is central to to the method, you might think of sales or a patent, and be reluctant to divulge too much information early on. But if you feel like telling everyone, i would suggest posting it on Navlist.

Ken

On Jul 11, 2017, at 4:33 PM, Mark Knudsen <NoReply_Knudsen@fer3.com> wrote:

I am new at this so be patient. Before retiring my work was precise with hand tools. This comment is based on those experiences it may also be something you already do that I am not aware of. The pictures I see though do not show different though.
When I hold my sextant I try to do it in a way to minimize as much bobbing around by having my muscles working in unison. First I use my left eye to center the sextant between my shoulders for balance and uniform tension between my shoulders and tension on the sextant. The second thing I have done is make a eye piece that fits on the sight tube or telescope out of silicon that fits on my eye socket to stabilize the sextant on my face, it also blocks light glare.
These are just things that help my accuracy. Would be interested in feed back from you with more experience thanks

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