New Lunar Crescent of Syawal 1437 seen from Brunei

Bandar Seri Begawan – July 05, 2016. A group of members of the Astronomical Society of Brunei Darussalam was at the Agok Hill in Tutong for the moonsighting to observe the new moon of Syawal 1437H. The western sky was partly cloudy especially new the horizon with the sun set behind the clouds on that evening. At about 15 minutes after sunset, at the clouds break, the 24 hour old hilal was firstly visible through telescopes and CCD Camera at around 6.52 pm. Continue reading “New Lunar Crescent of Syawal 1437 seen from Brunei”

First Sightings of Lunar Crescent 2015-2019 for Brunei Darussalam

First Sightings of Lunar Crescent 2015-2019 for Brunei
First Sightings of Lunar Crescent 2015-2019 for Brunei (Click on the image for a larger version)

The table above provides the dates and concise data to hunt for the youngest possible lunar crescent in this country, which is a very challenging activity.

First sighting of the new crescent moon is used as the basis of various calendars to signal the start of the new month. For instance, Islam requires that the sighting of the the new crescent moon should be made with the naked eye.

Predicting the first sighting of the new crescent moon has been attempted since the time of the Babylonians. These ancient methods relied on the age of the Moon and the time difference between moonset and sunset. More modern methods use the angular separation of the Sun and Moon, the altitude difference between the Sun and Moon, their relative azimuths and the width of the crescent.

Guidelines on using the table.
Guidelines on using the table.

The following table shows the dates of possible first sighting of new moon crescent (in Arabic known as hilal) for Brunei Darussalam. These dates are colour-coded based on the moon altitude and a crude prediction of the new moon sighting can be related as follow:

1. Red that indicates the moon altitude which is less than 2°. A very slim chance of visibility due to low altitude.
2. Orange that signifies the moon altitude between 2° and 5.5°. There is a slim chance of crescent visibility. However visibility might be improved with the use of optical aids and excellent atmospheric conditions.
3. Yellow that the moon is at altitude between 5.5° and 7.5°. There is a good chance that the crescent is visible to the naked eyes under excellent atmospheric conditions.
4. Green that shows the moon’s altitude is more than 7.5°. The lunar crescent is positioned reasonably high above the horizon making it easily visible to the naked eye.

If you manage to sight the crescent on the dates provided, please share your experience and photos via pabd@bruneiastronomy.org

More info: Jadual Kenampakan Pertama Anak Bulan Di Negara Brunei Darussalam 2000 – 2099

 

 

2011 Aug 30 Brunei Sight Syawal Cresent 1432

Bandar Seri Begawan – The astronomical Society of Brunei Darussalam (PABD) carried out the moon crescent observation at Agok Hill in the afternoon. The weather was very cloudy and the moon crescent was only observed for a few minutes from 18:55 local time through telescopes, binocular and naked eyes.

The 31-hour-old new moon crescent visible through a telescope at 18:55 local time from Bukit Agok, August 30, 2011.
The 31-hour-old new moon crescent visible through a telescope at 18:55 local time from Bukit Agok, August 30, 2011.
A few minutes before the sunset. The weather condition was partly cloudy.
A few minutes before the sunset. The weather condition was partly cloudy.

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.

Sabit Anak Bulan Ramadhan 1428H

Lihat gambar anak bulan yang berumur kira-kira 22 jam telah di ambil pada petang 13 September 2007. Jelas, walaupun pada fasa baru, permukaan bulan masih kelihatan disebabkan oleh “Earthshine” ataupun pantulan daripada cahaya matahari oleh bumi.

Anak bulan yang berumur kira-kira 22 jam telah di ambil pada petang 13 September 2007.
Anak bulan yang berumur kira-kira 22 jam telah di ambil pada petang 13 September 2007.
Anak bulan yang berumur kira-kira 22 jam telah di ambil pada petang 13 September 2007.
Anak bulan yang berumur kira-kira 22 jam telah di ambil pada petang 13 September 2007.