scholarly journals Sighting the New Moon as the Methodology for Determining the Month of Ramadhān

2018 ◽  
Vol 33 (1) ◽  
Author(s):  
Morad Sabdullah Umpa
Keyword(s):  
The Moon ◽  
Depth Study ◽  
New Moon ◽  
Muslim Communities ◽  
Descriptive Method ◽  
Legal Opinion

Muslim communities are known to be united, but every year, towards the start of Ramadhān, some of them argue which started to be divided over the issue on the determination of the start of the blessed month. This study aimed to investigate the different options proposed for the determination of the month of Ramadhān including local and global sighting; Number of witnesses required; Size of Matla'; and Saudī Sighting Process and its implications. Data were gathered through an in-depth study using the descriptive method. The objectives were to determine the universally accepted legal opinion on sighting the New Moon in connection with the elimination of differences that frequently surface and for ensuring the celebration of 'Eid on a single day in one lunar unit. Based on the findings, it is revealed that sighting the new moon must be conducted in each locality because there are Multiple Horizons (the time at which the moon rises, varies from place to place). Muslims must show unity during the month of Ramadhān and at the occasions of 'Eid at least locally if not nationally or internationally. This would be of great value and importance to the whole Muslim nation by fostering the initial steps towards united observance of Ramadhān.

scholarly journals Morfometri Portunus pelagicus Linnaeus, 1758 (Malacostraca : Portunidae) Pada Fase Bulan Yang Berbeda Di Perairan Betahwalang, Demak

2019 ◽  
Vol 8 (2) ◽  
pp. 204-210
Author(s):  
Errizal Machmud Putra ◽  
Rini Pramesti ◽  
Gunawan Widi Santosa
Keyword(s):  
Full Moon ◽  
Environmental Parameters ◽  
Moon Phase ◽  
Swimming Crab ◽  
The Moon ◽  
Portunus Pelagicus ◽  
Natural Factors ◽  
New Moon ◽  
Descriptive Method

Rajungan (Portunus pelagicus) merupakan komoditas unggulan Indonesia. Perairan Betahwalang, Kabupaten Demak memiliki sumberdaya rajungan yang  potensial dengan tingkat eksploitasi yang tinggi. Rajungan ini ditangkap setiap hari tanpa memperhatikan faktor alam berupa fase bulan yang menyebabkan menurunnya populasi. Informasi penangkapan berdasarkan fase bulan diperlukan agar populasi rajungan dapat terjaga. Tujuan Penelitian ini adalah mengkaji jumlah dan sebaran morfometri rajungan yang tertangkap pada fase bulan purnama dan bulan baru di perairan Betahwalang. Penelitian ini dilakukan dari November 2017 sampai Februari 2018 di perairan Betahwalang. Metode penelitian yang digunakan yaitu metode deskriptif. Penentuan lokasi penelitian berdasarkan area penangkapan rajungan di perairan Betahwalang. Pengambilan data dilakukan 8 kali dari tanggal 5 November 2017 sampai 18 Februari 2018. Pengambilan data berupa jumlah, lebar karapas, berat, jenis kelamin rajungan, dan parameter lingkungan. Hasil penelitian menunjukkan total rajungan tertangkap yaitu 448 ekor, 296 ekor pada Bulan Purnama dan 152 ekor pada Bulan Baru. Morfometri rajungan ukuran ≤ 10 cm pada Bulan Purnama 190 ekor lebih banyak dari Bulan Baru 90 ekor. Rajungan ukuran > 10 cm pada Bulan Baru 106 ekor lebih banyak dari Bulan Baru 62 ekor. Blue Swimming Crab (Portunus pelagicus) is Indonesia's flagship commodity. The waters of Betahwalang, Demak Regancy have potential Blue Swimming Crab resources with high levels of exploitation.  The crabs are catched every day regardless of natural factors, such as the moon phase that causes the population to decline. Blue Swimming Crab catch’s information based on the moon phase is required for the population to sustaine. The purpose of this research is to study the amount and distribution of Blue Swimming Crab morphometry catched on the full and new moon phase in Betahwalang waters. The study was conducted from November  2017 till February 2018 in the waters of Betahwalang. The research method used was descriptive method. Determination of research location based on Blue Swimming Crab catching area in Betahwalang waters. The data were collected 8 times from November 5, 2017 till February 18, 2018. Data were collected in number, width of carapace, weight, sex, and environmental parameters. The results showed total of catched crabs, were 296 crabs on Full Moon, and 152 crabs on New Moon. Blue Swimming Crab morphometry size ≤ 10 cm on Full Moon was 190 crabs more than New Moon was 90 crabs. Then, in Size> 10 cm on New Moon was 106 crabs more than New Moon was 62 crabs.

scholarly journals Astronomy at the service of the Islamic society

2009 ◽  
Vol 5 (S260) ◽  
pp. 514-521
Author(s):  
Ilias M. Fernini
Keyword(s):  
Proper Time ◽  
Astronomical Observatory ◽  
The Sun ◽  
The Moon ◽  
Scientific Institutions ◽  
Mathematical Astronomy ◽  
Islamic Empire ◽  
New Moon ◽  
Islamic Society

AbstractThe Islamic society has great ties to astronomy. Its main religious customs (start of the Islamic month, direction of prayer, and the five daily prayers) are all related to two main celestial objects: the Sun and the Moon. First, the start of any Islamic month is related to the actual seeing of the young crescent after the new Moon. Second, the direction of prayer, i.e., praying towards Mecca, is related to the determination of the zenith point in Mecca. Third, the proper time for the five daily prayers is related to the motion of the Sun. Everyone in the society is directly concerned by these customs. This is to say that the major impetus for the growth of Islamic astronomy came from these three main religious observances which presented an assortment of problems in mathematical astronomy. To observe these three customs, a new set of astronomical observations were needed and this helped the development of the Islamic observatory. There is a claim that it was first in Islam that the astronomical observatory came into real existence. The Islamic observatory was a product of needs and values interwoven into the Islamic society and culture. It is also considered as a true representative and an integral par of the Islamic civilisation. Since astronomy interested not only men of science, but also the rulers of the Islamic empire, several observatories have flourished. The observatories of Baghdad, Cairo, Córdoba, Toledo, Maragha, Samarqand and Istanbul acquired a worldwide reputation throughout the centuries. This paper will discuss the two most important observatories (Maragha and Samarqand) in terms of their instruments and discoveries that contributed to the establishment of these scientific institutions.

scholarly journals MEMAHAMI MAKNA HILAL MENURUT TAFSIR AL-QUR’AN DAN SAINS

UNIVERSUM ◽  
2015 ◽  
Vol 9 (1) ◽  
Author(s):  
Qomarus Zaman
Keyword(s):  
The Sun ◽  
The Moon ◽  
Majority Opinion ◽  
Timing System ◽  
The Future ◽  
New Moon ◽  
The Times ◽  
Modern Astronomy

Interpretation of surah Al-Baqarah verse 189 which uses a method of transmission saying that the verse would describe the times predetermined by God to mankind in serve him well to explain when fasting, and pilgrimage feast. Similarly, the new moon will also indicate the prescribed period for women. Narrated by Bisyri bin Mu'adh said that Qatada once said: The Prophet Muhammad was asked one day by his people will paragraph يسألونك عن الأهلة قل هي مواقيت للناس at the time of the new moon has not yet appeared? Then the Prophet said to them; Then the Prophet said to them; Allah have it appear as what ever you know. هي مواقيت للناس therefore to bring it up then he is as a sign on the start of fasting for the Muslims and for Iftar (feast) and indicates the time for those with the arrival of the rituals of Hajj and to determine the future iddahnya women.Hilal is a sign or marker clue is a unity of time and timing system consisting of day, month and year. This has been the form of a calendar (almanac, Taqwim) used easily for the benefit of mankind in the implementation of fasting, pilgrimage, prayer time, the determination of the prescribed period and other mualamah agreement. In view of modern astronomy as Danjon, the new moon will be visible if the position of the moon within a minimum of 8 degrees in addition to the sun (the moon's crescent cauld rot be seen closer to the sun for elongation less that 80). This opinion was never confirmed by Muammer Dizer the International Islamic Conference in Istanbul Turkey in 1978, according to research that has been accepted by international astronomers declared that the moon looks at the position of the sun distance (angle of azimut) 80 and the position of elevation above the horizon of 50. He stated it is impossible if there is a majority opinion expressed in the following 50 positions height above the horizon can be seen with the eye. While MABIMS including Indonesia make imkan al-rukyat criteria states that the size of the moon positions can be seen at a height of 20, 30 the azimut distance elongation angle and distance when ijtimak and sunset time of 8 hours (kiteria to 20, 30 and 8 hours). MABIMS criteria is lower than the criterion Istanbul. This last criterion used Malaysia Singapore and Brunei, while Indonesia is still no difference and there is no agreement on these criteria.Keywords; Hilal, Masa Iddah, Taqwim, Imkan al-rukyat

HADIS KURAIB DALAM KONSEP RUKYATUL HILAL

1970 ◽  
Vol 13 (2) ◽  
Author(s):  
Muslih Husein
Keyword(s):  
The West ◽  
The Earth ◽  
New Moon ◽  
The Republic

Hisab dan rukyat, hakikatnya, adalah cara untuk mengetahui pergantian bulan. Kajian ini memperlihatkan beberapa temuan. Pertama, korelasi antara hadis Kuraib dan terjadinya perbedaan penetapan awal Ramadan, Syawal, dan Dzul Hijjah di Indonesia. Kementerian Agama Republik Indonesia telah menetapkan bahwa Indonesia secara keseluruhan menjadi satu wilayah hukum (wilayatul hukmi). Kedua, tentang keberhasilan rukyat al-hilal di satu kawasan yang diberlakukan bagi kawasan lain di muka bumi. Perlu diketahui bersama bahwa visibilitas pertama hilal tidak meliputi seluruh muka bumi pada hari yang sama, melainkan membelahnya menjadi dua bagian: (1) bagian sebelah Barat yang dapat melihat hilal dan (2) bagian sebelah Timur yang tidak dapat melihat hilal.Hisab and rukyat is a way to know the turn of the month. This study shows several findings. First is the correlation between Kuraib traditions and differences in the determination of the beginning of Ramadan, Shawwal, and Dhul-Hijjah in Indonesia. Ministry of Religious Affairs of the Republic of Indonesia has stated that Indonesia as a whole into a single jurisdiction (wilayatul hukmi). Second, on the success rukyat alhilal in one area that applied to other regions of earth. Important to know that the first visibility of the new moon does not cover the entire face of the earth on the same day, but splitting it into two parts: (1) part of the West to see the new moon, and (2) part of the East were not able to see the new moon.

Lunar Cycle Influences Reproductive Performance of Crossbred Brahman Cows Under Tropical Conditions

2021 ◽  
pp. 074873042098363
Author(s):  
Alejandro A. Aguirre ◽  
Roberto A. Palomares ◽  
Aitor D. De Ondiz ◽  
Eleazar R. Soto ◽  
Mariana S. Perea ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Full Moon ◽  
Lunar Cycle ◽  
The Moon ◽  
Crossbred Cows ◽  
Lunar Phases ◽  
Tropical Conditions ◽  
Service Conception ◽  
New Moon ◽  
Postpartum Estrus

Evidence has accumulated over the years indicating that the moon influences some aspects of the reproductive activity in animals and humans. However, little is known about the influence of the lunar cycle on the reproductive performance of cows under tropical conditions, where the environment strongly affects reproduction. This retrospective study was conducted with the aim of assessing the influence of the lunar cycle on some reproductive traits of tropical crossbred cows managed in a pasture-based system. Data from 5869 reproductive records from two commercial farms localized in the Maracaibo Lake Basin of Zulia State, Venezuela, were analyzed. Variables studied were first service conception rate, calving frequency, first postpartum estrous frequency, and pregnancy frequency. In addition to the lunar cycle, the effects of farm, season, and predominant breed were also considered. Data were analyzed using logistic regression and general linear model from SAS. First service conception was affected by lunar phases and predominant breed, but not by farm or season. For frequencies of calving, first postpartum estrus, and pregnancy, there was no main effect of farm, season, and predominant breed, whereas the effect of lunar phases was highly significant. First service conception was significantly greater in waning than in crescent phase of the lunar cycle. Frequencies of calving, first estrus, and pregnancy were highly correlated and showed greater figures around full moon and new moon. In conclusion, lunar cycle influenced first service conception, attaining greater values in the waning phase of the moon cycle. Frequencies of calving, first postpartum estrus, and pregnancy in crossbred cows showed a clear bimodal rhythm, whose greatest values coincided with new moon and full moon.

scholarly journals Parametric Analysis of Rotational Effects in Seismic Design of Tall Structures

2021 ◽  
Vol 11 (2) ◽  
pp. 597
Author(s):  
Milan Sokol ◽  
Rudolf Ároch ◽  
Katarína Lamperová ◽  
Martin Marton ◽  
Justo García-Sanz-Calcedo
Keyword(s):  
Seismic Design ◽  
Parametric Study ◽  
Tall Buildings ◽  
Soil Parameters ◽  
Eurocode 8 ◽  
Tall Structures ◽  
Rotational Components ◽  
Different Types ◽  
Depth Study

This paper uses a parametric study to evaluate the significance of the rotational components of Earth’s motion in a seismic design. The parametric study is based on the procedures included in Eurocode 8, Part 6. Although the answer to the question of when the effects of rotational components are important is quite a complex one and requires a more in-depth study, our aim was to try to assess this question in a relatively quick manner and with acceptable accuracy. The first part of the paper is devoted to derivation of a simple formula that can be used for expressing the importance of rotational components in comparison with the classic seismic design without their usage. The quasi-static analysis, assuming inertial forces, is used. A crucial role plays the shape of the fundamental mode of the vibration. Due to simplicity reasons, well-known expression for estimation of the first eigenmode as an exponential function with different power coefficients that vary for different types of buildings is used. The possibility of changing the soil parameters is subsequently included into the formula for estimation of the fundamental frequency of tall buildings. In the next part, the overall seismic analyses of complex FEM models of 3D buildings and chimneys are performed. The results from those analyses are then compared with those from simplified calculations. The importance of the soil characteristics for determination of whether it is necessary to take into account the rotational effects is further discussed.

Automated Determination of the Position of Ships by Satellites

1967 ◽  
Vol 20 (03) ◽  
pp. 281-285
Author(s):  
H. C. Freiesleben
Keyword(s):  
Celestial Body ◽  
World Wide ◽  
Artificial Satellites ◽  
Radio Waves ◽  
The Moon ◽  
Position Determination ◽  
The Earth ◽  
Navigational Aids ◽  
Automated Determination

It has recently been suggested that 24-hour satellites might be used as navigational aids. To what category of position determination aids should these be assigned ? Is a satellite of this kind as it were a landmark, because, at least in theory, it remains fixed over the same point on the Earth's surface, in which case it should be classified under land-based navigation aids ? Is it a celestial body, although only one tenth as far from the Earth as the Moon ? If so, it is an astronomical navigation aid. Or is it a radio aid ? After all, its use for position determination depends on radio waves. In this paper I shall favour this last view. For automation is most feasible when an object of observation can be manipulated. This is easiest with radio aids, but it is, of course, impossible with natural stars.At present artificial satellites have the advantage over all other radio aids of world-wide coverage.

Shape of the Moon from the Orbiter Determination of its Gravitational Field

Nature ◽  
1966 ◽  
Vol 212 (5059) ◽  
pp. 271-271 ◽  
Author(s):  
C. L. GOUDAS ◽  
Z. KOPAL ◽  
Z. KOPAL
Keyword(s):  
Gravitational Field ◽  
The Moon

A Graphical Approach to Some Problems in Maya Astronomy

1946 ◽  
Vol 12 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Robert H. Merrill
Keyword(s):  
Graphical Methods ◽  
The Sun ◽  
The Moon ◽  
Graphical Approach ◽  
New Moon ◽  
Dresden Codex

Although graphical methods are in common use by engineers and astronomers, they are less familiar to archaeologists. To portray the rhythm of celestial motions, astronomers often use “elongation” diagrams to show angular distances of moon and planets from the sun on each day of the calendar year.The Maya recognized a zone within which the planets could not be seen because of proximity to the brilliant disk of the sun. The moon cannot be seen on the day of conjunction with the sun, and is generally invisible on the day before and the day after this “new moon day.” The three consecutive days in the lunar table of the Dresden Codex may represent the 3-day phase of moon disappearance.

scholarly journals LIVING HADIS PADA TRADISI TAWASUL DAN TABARUK DI MAKAM SUNAN BONANG LASEM REMBANG

2020 ◽  
Vol 6 (2) ◽  
pp. 299
Author(s):  
Nur Huda
Keyword(s):  
Human Resource ◽  
Social Action ◽  
Max Weber ◽  
Religious Leaders ◽  
The People ◽  
Value Rationality ◽  
Instrumental Action ◽  
Muslim Communities ◽  
Theory Of Social Action ◽  
Descriptive Method

<p><em>Tawasul</em> dan <em>Tabaruk </em>merupakan tradisi yang sudah banyak dipraktekkan oleh masyarakat muslim pada saat berdoa di makam. Kedua tradisi ini juga sering disalahpahami sebagai praktek yang menjerumuskan kepada kemusyrikan. Penelitian ini bertujuan untuk mengungkap aspek living hadis pada tradisi <em>tawasul</em> dan <em>tabaruk</em> warga Desa Bonang di makam Sunan Bonang dengan menggunakan metode deskriptif induktif, dan menganalisisnya dengan teori tindakan sosial Max Weber. Penelitian ini menghasilkan beberapa temuan. Pertama, tradisi ini merupakan suatu living hadis. Kedua, berdasarkan tipe tindakan tradisional, para pelaku tradisi ingin terus menerus menghormati Sunan Bonang dengan cara melestarikan tradisi yang sudah dilakukan secara turun temurun. Ketiga, tindakan afektif, memperlihatkan bahwa para pelaku memiliki ikatan emosional dengan para tokoh agama dan waktu pelaksanaan (malam Jumat). Keempat, tindakan instrumental rasional, para pelaku secara sadar mampu melaksanakan tradisi tersebut, baik dari aspek sumber daya manusia maupun aspek finansial. Kelima, rasionalitas nilai, pelaku ingin meniru perilaku tokoh-tokoh agama dan membiasakan diri bersedekah sekaligus ingin menanamkan nilai solidaritas jamaah.</p><p> </p><p>[<strong><em>Tawasul</em> and <em>Tabaruk</em> Traditions in Sunan Bonang’s Tomb Lasem Rembang: A Study of Living Hadith</strong>.<strong> </strong><em>Tawasul</em> and <em>tabaruk</em> are traditions that have been widely practiced by Muslim communities when praying at the grave. These two traditions are also often misunderstood as practices that lead to idolatry. This study aims to reveal aspects of the living hadith in the tradition of <em>tawasul</em> and <em>tabaruk</em> of the people of Bonang Village in the Sunan Bonang tomb by using the inductive descriptive method, and by analyzing it through Max Weber's theory of social action. This study yielded several findings. First, this tradition is a living hadith. Second, based on the type of traditional action, traditional actors want to continue to respect Sunan Bonang by preserving traditions that have been carried out from generation to generation. Third, affective action shows that peoples have an emotional bond with religious leaders (<em>ulama</em>) and the time of implementation (Thursday night). Fourth, rational instrumental action, where the actors are consciously able to carry out the tradition, both from the human resource and financial aspects. Fifth, value rationality, the people want to imitate the behavior of religious figures and get used to giving alms at the same time wants to instill the value of solidarity among the <em>jama'a</em>.]</p>

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