Talk:New moon
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Formula
The formula D = 5.597660 + 29.5305888531*N + 102.19E-12*N*N is completely baffling at first, because it looks as if E is a constant, like D, and -12*N*N is the final term. It could be made much clearer very simply, e.g.
D = 5.597660 + 29.5305888531*N + (102.19E-12)*N*N
so I'll do that - but are there not conventions for writing formulae that would help here?
- How about this (see in Wikipedia:How to edit a page for how to create math):
- D = 5.597660 + 29.5305888531*N + (102.19*10-12)*N2
- andy 11:45 Mar 7, 2003 (UTC)
New Moons/Year
How many new moons are there per year? -Lommer | talk 04:20, 21 Jan 2005 (UTC)
- At least twelve and no more than thirteen, depending on what year it is. --Eric Forste 05:29, 21 Jan 2005 (UTC)
- An average of about 12.36827 . This has been approximated by 12 7/19 (Metonic cycle) and is more accurately approximated by 12 123/334 or 12 130/353. -- Karl Palmen 21 Jan 2005 09:30 (UTC)