NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: equinox
From: Fred Hebard
Date: 2004 Mar 21, 21:35 -0500
From: Fred Hebard
Date: 2004 Mar 21, 21:35 -0500
Herbert, Thanks for chiming in. I haven't seen a discussion of equinox recently, and I thought it would be fun to bring it up. Definitely didn't want to start any fights! Would you care to elaborate on you comment? Thanks, Fred On Mar 21, 2004, at 8:38 PM, Herbert Prinz wrote: > Jay Borseth wrote: > >> >> Using these values for deltaT, Novas, and DE405, the equinox as >> calculated >> by Pocket Stars was at 6:48:53. > > So far, you are closest to the truth, but it it is still not correct. > Given that > you are using the heavy battery, you should be within the second. > > Hey, Zorbec, Garry, et al.! Instead of getting so worked up over this, > how about > reading what we discussed here on the list last equinox? (And probably > every > single equinox before.) Equinox is NOT when the declination of the sun > is zero, > but when its ecliptic longitude is zero. > > Herbert >