NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Buying a sextant- a cautionary tale.
From: Bill B
Date: 2006 May 5, 17:04 -0400
From: Bill B
Date: 2006 May 5, 17:04 -0400
Alex wrote
> Tell me the coordinates of delta, zeta Orion
> you used, and I will compare our calculations.
> (They are not in the Almanac, where did you get them from?)
Initially pulled the information from Omar's site, but delta's declination
was 0.1' off, and zeta later proved to way off (Omar listed declination as
0d 00.4' N!).
Looked at the spreadsheet after a nights rest and found a blunder in
entering delta dec. We now agree at 2d 44.2' before refraction correction
(2d 44.1' with correction.)
Values currently used:
SHA Dec
Delta 276 55.3 0 17.6 S
Zeta 274 44.1 1 56.3 S
Started looking for a pair for the summer.
Despite the S declination, Beta and delta Scorpii (approx. SHA 119) look
good within an hour or two of meridian passage (about 3 am for us now--but
getting within bed time in couple of months).
Bill
