NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: moon visible by day...
From: Jan Bruggeman
Date: 2001 Feb 07, 7:38 AM
From: Jan Bruggeman
Date: 2001 Feb 07, 7:38 AM
hello all,The day (24 h) is (used to be) divided into 4 "quarters", 2 for day (first and last) and 2 for the night (also called first and last). This means that the start of the day is 0600 and the start of the night is 1800. Wright ?if declination is 0, yes. otherwise, we do not see 180 of the object's rotation. It can be more, when the declination of the object is towards us, or less, if otherwise. as example, consider the sun in summer: declination is to our side: we see more than 180 degrees of the path of the sun, which makes for a longer day. Winter is just the inverse: declination is away from us. Expressed this way, it holds true wherever you are. This also accounts for the small differences between my theoretical and your practical approach. greetings, mvg, Jan Bruggeman - ON4AIN mail : jan@bruggeman.com web : http://jan.bruggeman.com
