Lumbung Pustaka UNY: No conditions. Results ordered -Date Deposited. 2024-03-29T04:37:20ZEPrintshttp://eprints.uny.ac.id/apw_template/images/sitelogo.pnghttps://eprints.uny.ac.id/2014-11-07T04:28:28Z2014-11-07T04:28:28Zhttp://eprints.uny.ac.id/id/eprint/11520This item is in the repository with the URL: http://eprints.uny.ac.id/id/eprint/115202014-11-07T04:28:28ZRE-EVALUATION OF HILAAL VISIBILITY CRITERIA
IN INDONESIA BY USING INDONESIA AND INTERNATIONAL
OBSERVATIONAL DATAThis study using data of hilaal observation compiled by the Ministry of Religious
Affairs (MORA) Republic of Indonesia during 1962-2011 period, the observational
data of Rukyatul Hilal Indonesia (RHI) during 2007-2009 period and Odeh’s
international observational data during 1859-2005 period. Those data were selected
by applying selection procedure of Djamaluddin (2001) and by eliminating hilal data
whose angular distance < 3° between hilaal and particular planet. Next, selected data
were plotted to graphic of Sun-Moon altitude difference (ARCV - Arc of Vision) and
Sun-Moon angular distance (ARCL - Arc of Light), moon age and Sun-Moon
angular distance (ARCL - Arc of Light) and Sun-Moon altitude difference (ARCV -
Arc of Vision) and Sun-Moon angular distance (DAz - Delta Azimuth) to propose
the new hilaal visibility criteria in Indonesia. The new criteria proposed are ARCL
greater than 5.4°, Moon is as old as 9.4 hours after conjuction and
= 3° if DAz 5°
ARCV
-0.719(DAz)+6.795 if DAz < 5°
.Ramadhan T. B.Djamaluddin T.Utama J. A.