NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Index checks with laser and without
From: Alexandre Eremenko
Date: 2007 Jan 4, 12:35 -0500
From: Alexandre Eremenko
Date: 2007 Jan 4, 12:35 -0500
Dear Ken, I mostly take Lunars from my balcony. Only once (in fall 2006) I took them from a nearby Nature reserve area (1 mile away) and the average error was +0.8' and pretty consistent in 3 DIFFERENT star-lunar distances. I mean I used 3 different stars. {}From the balcony about 50% of all Lunars are perfect (that is the averages are within 0.2') But another 50% have errors of 0.4' to 1'. Alex On Thu, 4 Jan 2007, Ken Muldrew wrote: > > > On 3 Jan 2007 at 23:45, Alexandre E Eremenko wrote: > > > What makes it really strange is that the error > > when present is usually constant in long series. > > So averaging does not help. I would almost say > > that it is constant during a day... though this is > > not always so. It looks like it depends on... > > weather:-) Thopugh I understand that this idea > > is absurd. Some new kind of strong abnormal refraction > > in Indiana? > > Does this intermittent error only show up when you take lunars from a > particular location (e.g. your balcony) or have you also suffered from it > in other locations? > > Ken Muldrew. > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---