NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Which stars are circumpolar at 52 N?
From: Brad Morris
Date: 2019 May 29, 13:44 -0400
From: Brad Morris
Date: 2019 May 29, 13:44 -0400
Herman
You asked if stars above 38°N declination at 52°N are circumpolar.
Yes. Yes they are cicumpolar, albeit barely. A star at 38°N, on the meridian 180° in longitude from your longitude, would be 90° from your zenith, or at 0° altitude. Refraction at that altitude, combined with the extinction would make it a very tricky observation. It is not really useable at that altitude, but would be just at the horizon. So yes, circumpolar.
Brad
On Wed, May 29, 2019, 1:33 PM Herman Dekker <NoReply_Dekker@fer3.com> wrote:
Few years ago I learned from Navlist that at my Latitude 52°N
stars with Dec below S 38° are never visible.
I wondered if every star with Dec above N 38°are for me Cicumpolair?HermanD
