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Re: Basics of computing sunrise/sunset
From: Christian Scheele
Date: 2009 Jun 17, 22:57 +0200
From: Christian Scheele
Date: 2009 Jun 17, 22:57 +0200
----- Original Message ----- From: "Christian Scheele"To: Sent: Wednesday, June 17, 2009 10:41 PM Subject: [NavList 8673] Basics of computing sunrise/sunset > > I'm trying to solve the following sunrise/sunset astronomical triangle and > am encountering unexpected pitfalls. > > cos(LHA) = [sin (a) - sin (lat) sin(dec)]/ cos(lat)cos(dec) > > where I am assuming a = -0.83 degrees > > It is of course something very basic and I'm almost embarassed to say that > although I keep rechecking what I'm doing, I remain with an error of about > 15 minutes by the time I get to the final result in mean zone time. Before > I > drag everybody into it, could somebody please tell me whether there are > any > snags that I should look out for? > > > > --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---