{"id":1420,"date":"2015-04-19T21:00:51","date_gmt":"2015-04-19T13:00:51","guid":{"rendered":"http:\/\/bruneiastronomy.org\/web\/?p=1420"},"modified":"2018-08-12T14:28:21","modified_gmt":"2018-08-12T06:28:21","slug":"2015-apr-19-15-5-hour-old-the-youngest-lunar-crescent-visible-in-brunei","status":"publish","type":"post","link":"https:\/\/bruneiastronomy.org\/web\/2015\/04\/2015-apr-19-15-5-hour-old-the-youngest-lunar-crescent-visible-in-brunei\/","title":{"rendered":"2015 Apr 19 15.5 Hour Old the Youngest Lunar Crescent Visible in Brunei"},"content":{"rendered":"
\"IMG-20150419-WA0032\"<\/a>
Sunset at 1827 local time<\/figcaption><\/figure>\n

 <\/p>\n

Tutong – April 19, 2015.<\/strong> Almost despaired by the weather as the western sky was partly cloudy\u00a0 when\u00a0seeking the\u00a0young moon\u00a0at Bukit Agok this evening.\u00a0\u00a0The sun set behind the\u00a0real horizon of which very much\u00a0assisting our telescope alignment and had\u00a0given us hope indicating \u00a0for a clear hazy patch in the sky.\u00a0Sunspots were visibled through a 100mm f\/6 refractor attached with a solar filter when the scope slewed at the sun.<\/p>\n

\"IMG_6200\"<\/a>
Sunspots were observed at two different areas of the Sun.<\/figcaption><\/figure>\n

After sunset, at 1827, the scope was pointed to the Moon revealing\u00a0its location\u00a0which was\u00a0behind thick clouds. However,\u00a0there was some opening in clouds about\u00a01 to 3 degrees just nearly\u00a0above the horizon,<\/p>\n

At 1852 or\u00a025 minutes after local sunset, the scope was pointing to the cloudless area,\u00a0very low\u00a0\u00a0in the west\u00a0horizon.\u00a0 At that instance, the\u00a0super-thin young\u00a0lunar\u00a0crescent of Rejab 1436H was firstly\u00a0appeared through the telescope. Even so, with optical aid, \u00a0the Hilal\u00a0(crescent) was hardly seen to the eyes as it was washed out by the twilight.\u00a0Not until 4 minutes after that, the crescent was visible to the naked eyes through the viewfinder.<\/p>\n

The\u00a0new Moon\u00a0sighting\u00a0was conducted by Ustaz Saifulbahri and Hazarry of the Astronomical Society of Brunei Darussalam. This\u00a0afternoon’s sighthing was a new\u00a0record set for the youngest Moon with age of 15.8 hours old \u00a0ever seen with optical aid in Brunei. Previous record was a 19 hours old observed in November 2004 (here<\/a>).
\n\"20150419_NewMoonCrescentRejab1436H\"<\/a>\u00a0 \"20150419_NewMoonCrescentRejab1436H_arrow\"<\/a><\/strong><\/p>\n

\n

New moon data:<\/h4>\n

Awal bulan (7) Rejab 1436 :<\/p>\n

Ijtimak awal Rejab : …<\/span>
\n19 April 2015, jam 2j 59m 20s (GMT: 8)
\nLokasi : Bandar Seri Begawan, Brunei<\/span><\/p>\n

\n

Pada hari rukyah,
\n29hb Jamadil Akhir 1436 = 19 April 2015,<\/p>\n

1.Matahari terbenam: 18j 26m 45s (GMT: 8)
\n2.Bulan terbenam: 18j 59m 46s
\nKetika matahari terbenam:-1.Altitud bulan: 7.59\u00b0 (7\u00b0 35′ )
\n2.Jarak lengkuk: 7.59\u00b0 (7\u00b0 35′ )
\n3.Azimut bulan: 281.26\u00b0 (281\u00b0 15′ 28″)
\n4.Azimut matahari: 281.17\u00b0 (281\u00b0 10′ 25″)
\n5.Susulan lama: 0jam 33minit 00saat
\n6.Umur bulan : 15.46jam
\n7.Peratus cahaya (fasa): 0.65%
\n8.SD : 0\u00b0 16′ 21″
\n9.Jarak bulan-bumi : 364891 km<\/p>\n

\n

 <\/p>\n<\/div>\n

\"20150419_NewMoonCrescentRejab1436H_2\"<\/a><\/p>\n

\"20150419_NewMoonCrescentRejab1436H_arrow_2\"<\/a><\/p>\n