Check out the bookstore at IRBS.com
| Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch |

Re: Sextant accuracy with short distance to horizon

Subject: Re: Sextant accuracy with short distance to horizon
From: Dan Hogan (dhhogan@XXX.XXX)
Date: Mon Jun 25 2001 - 18:46:33 EDT

On 25 Jun 2001, at 17:03, Steven Wepster wrote:

>
> Dan Wrote:
>
> > You can take a sight on land from any *level* surface of sufficient
> distance.
> > I remember an "Aussie" list member that used the fence on his ranch
> in front
> > of his porch.
>
> That's interesting. But surely one must make an allowance for the fact
> that the fence is not at the same altitude as the horizon.

I can't remember that much about the post, but I THINK he had some kind of HE
correction for his eye above the fence line.

> _Steven

Cheers
-Dan-



| Home | Mailing Lists | Bookstore | Weather | Tide Predictions | Bowditch | Trawlerworld |