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 06, 3:57 AM
From: Jan Bruggeman
Date: 2001 Feb 06, 3:57 AM
hello all, Sorry for eventual mistakes, I'm translating literally from dutch. 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). a celestial object is "visible" during more or less (see declination) 180 degrees of it's daily 360 degrees trip, thus is visible during 2 quarters. a first quarter moon is visible during the "last quarter" of the day and the "first quarter" of the night, hence it's name. a full moon is visible during both first and last quarter of the night. a last quarter moon is visible during the last quarter of the night, and the first quarter of the day, hence it's name. a new moon is visible during both first and last quarter of the ... day! hope this helps, mvg, Jan Bruggeman - ON4AIN mail : jan@bruggeman.com web : http://jan.bruggeman.com (btw, I'm new on this list. for my introduction, see my website. I'm quite sure to find many interesting things on this list) -----Original Message----- From Russell Sher [mailto:rsher@TELLUMAT.COM] Sent: dinsdag 6 februari 2001 11:39 To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM Subject: moon visible by day... I'm often intrigued by comments from people about the moon being visible over here during the day. (I'm in Cape Town at 34 deg south) Is this unusual in any other parts of the world since I had always assumed that it would be equally visible by day else here? Or is this just ignorance because the moon is assumed to be nocturnal? regards Russell ily