Visibility of Luna and Lunar Crescent

bdh of such obFrystios dut were povided in Monm*n, s chromtogie lt8a3), W_
This n@s rhar for coBtaor LAC (e a) ARCV decE|s
com|anr 9, t.AG ed ARcv e di@tty lotDnionat ro ech
ktnude L lrgc DAZ dd taige ARCL m@s mall€r ARCV
LAC.
Duing Elarivety ucnI lioes rhe dploorions of rhe @tist visibiliry oa nd
rutu cr€sc.nt or rh€ lat visibjtity of rhe old cFsc€nr b.gd wnh lhe obstuations oad€
in Alhens and iG viciniry by Schnidt md othes. fteoretical exploradon was iniriared
rurc du€ ro @leldtui@t E6otu ll)e ey paniculd sbononiqt qusdon
(Foth*inshm 1903).
h lhc beginning of th. trcnlietb ceirury n was eatized rhat ncrhods of verifying
dates, panicltarly tum, dotes, wcrc nor avrjtable md pspje were @ncehed 6bout the
6r6noorc.t ondniom thar gov€n dE nsted €rc visibilny of $e rs lun.r .,esccnr
(FodE nsllah, t90l). To evatuare anonohicrl condirions for rhc ktiesl risibitny of
:::::: *'*!' "-" " *.ber ofsrudies ,ppeaEd. .rhe slrk ofr. K. Forhe,iishd
(1910) hinsell4d that ofE. W. Mau.dq (l9ll) is of vjtal importance. aou rhcsc
onu'bur'ons *eE bed on fie nal€d er. obcenarions ot new luna cr€*enr nade by
Augusl Momeseo, JutiN schhidt sd Friedricb schn
@nriburo^ ee .,p,.r*, i"
"'* ";; ;;;;:;Til:,#:lTJ:,i:;;
^, . lonn n.ghao claim ro havc sueg.sEd (in his d,crc aprHed
Philqophx in rh€ roumat
1 90)
of
lhat in ord.r to catcularc thc rrue date ol phasis on ough ro have a
lable of te requisne depre$ion of the Sun betow honzon at fic 6oonkt, or of lhe
aurtude ol the M@n at ttE $tuer for dif€re o8uld dishnces of the M@r fom rhe
sun. He h6 .l$ adnitted abou his hl'en* .
Monhsn in ,his rcead. Motre.-;;;rJ,'* T,,'1:::;:;llTf
moo. hade h the laGr half of thc nine&flti century by Jutic Schnjd| Iriedrjch
Schmidr and Morn*n himslr n€ hblcs menlioned e;liq euld be @nslrEred on the
lll