Astronomy in Brunei Darussalam
Bandar Seri Begawan – The western horizon was generally pretty clear and Venus was visible late afternoon yesterday (Jun 14, 2018) , but it was very windy and cloudy (from altitude about 6 degree and below) near the horizon where the moon was located in the sky.
Continue reading “A Quick Glimpse of 15 Hour Old New Moon Crescent”
Bandar Seri Begawan – There is another chance to break the national record for the youngest moon crescent on June 14, 2018 during the upcoming moon crescent observation for Syawal 1439H.
See explanation below:
Reminder: This is only a computational analysis data. The result/declaration of the sighting will be announced through official media by the government.
By Abdul Hakiim Yakof
Borneo Bulletin – TWO working papers on the use of modern technology for the sighting of crescent moon (Hilal) were presented during the Falak Syar’ie parallel session at The Rizqun International Hotel, Gadong yesterday.
The parallel session was part of the 14th Southeast Asia Survey Congress (SEASC) 2017 organised by the Ministry of Development’s Survey Department, in collaboration with the Brunei Institution of Geomatics (BIG), under the auspices of the Asean Federation of Land and Geomatics Survey (AFLAG). Continue reading “New techniques for moon sighting explained”
New Moon Visibility Computation for Bandar Seri Begawan Continue reading “New moon visibility and properties for Ramadan 1438H from Brunei Darussalam”
By MOHAMMAD SH. ODEH, Arab Union for Astronomy and Space Sciences (AUASS), P.O. Box 141568, Amman 11814, Jordan (e-mail: modeh@auass.org) (Received 12 May 2005; accepted 19 September 2005)
Abstract. A new criterion for lunar crescent visibility has been established using 737 observations, almost half of them obtained by the Islamic Crescent Observation Project (ICOP). This criterion is based on two variables, viz. the topocentric arc of vision and the topocentric crescent width. The new model is able to predict the visibility of the lunar crescent both for naked eye and optically aided observations. From the database we found a Danjon limit of 6.4 degrees.
Introduction The lunar crescent visibility has been studied by many astronomers since the Babylonian era, with as a result currently more than 12 different criteria for lunar crescent visibility, based on a number of sightings in different lunar conditions. Many of these criteria were developed by Islamic astronomers, since a number of Islamic religiouseventsaredirectlyrelatedtolunarcrescentsighting.Forexample,thenew Lunar (Hijric) month begins on the next day of sighting the new crescent at west after sunset.
Download HERE New Criterion Crescent.pdf
Present at the observation were Pengiran Shahdani (Vice President II), Awang Hj Mohamad Azri (Exco) and 4 other members.
The result of the observation was submitted to Islamic Crescents’ Observation Project (ICOP). See worldwide observation result here.
Assigned vantage points throughout the country could sight the new moon of Syawal 1432 H. The official announcement of the sighting was also made on TV and Radio and Brunei Darussalam starts Aidilfitri tommorrow, 31 August 2011.
The first crescent or hilal was visible from this country during the new moon sighting by the Survey Department on July 15. Based on the account, the moon’s altitude was
about 10.465 degrees, elongation of 11.223 degrees and it was 22 hours 33 minutes old at sunset. The visibility based on Mooncalc indicates that on 15th July 2007, the new moon should be easily visible from many parts of the world but ICOP report generalised, Brunei being the first eastern country to sight the new moon crescent.
Congratulation to the moon sighting committees of the Survey Department.