Visibility of Luna and Lunar Crescent

I. =6r4t-50'.54841+E tot84,.s12s66I,+0'.093104.r, -0,.0000062.rr
(2.5.1t
gits th. Grcawich Mcan Sid€E5l Ti6. .t oir UT of rhe drte. Th.n lh€
Ctqwich Si&@l Tio. for &e rirc ug@nt for ih. rimc of ob6qvation is:
T - To + (UHR + (UMLN +USEC/60y60)a0.997269j66JJ (2.5.t4)
'Iijen fic Hou anglc at ihis moncnt ofthe Moon is:
H=T a
(2.5 rt
srep.sl tllec^ofPatala,
If p is th. goc€rntic 6dius ofrh. Esdh, p,b ihe S.ocenkic hrirudc
of irE ohsftr ih rh. dsh1 .s6io! a' ed rhc dEtiEtjon d, aft.r
co@lion for prhllar &€ obr.ined $:
@sd - p@sp'sin rcos l/
(2 5.16)
<2.5 t1)
d'="".I
Gind -psin9 sintr)cosaa
ccd-pcGg'sinr@3tt
(2.5.tE)
Fin lly ro otltain rh. Lad Hdianrrl C@diDtcs A2inuth.nd rt AlriMe E
haY€ lhc followi.g lissfomalio$:
SrcFg: Azimu$
(2.5.19)
54