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All Journal Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Al-Afaq: Jurnal Ilmu Falak dan Astronomi
Nadirin, Akhmad
Unknown Affiliation
Astronomy Earth & Planetary Sciences Education Law, Crime, Criminology & Criminal Justice Social Sciences

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Kontroversi Tanggal Wafat Imam Ali Ra dan Tinjauannya dalam Perspektif Astronomi Islam Nadirin, Akhmad
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 4 No. 1 (2022): Juni 2022
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v4i1.4213

Abstract

Ali bin Abi Talib is one of the companions of the Prophet SAW who is guaranteed to enter heaven along with nine other friends. He led Islam for about four years before being stabbed by Abdurrahman bin Muljam while praying shubuh at the end of 40 AH until he died. In some literature, Imam Ali was killed on Friday night or Sunday night. In addition, there are several opinions in various Islamic historical literature about the date of the death of Ali ibn Abi Talib. Some say on Friday, 17 Ramadan 40 H. There are also opinions that mention 11 Ramadan 40 H. Some even write that Imam Ali died at the end of Rabiul Awal 40 H. This research is intended to answer the problem of Imam Ali's death date in perspective. astronomy. This problem is discussed with qualitative research in the form of library research. The primary source used in this study is T?rikh al-T?bari T?rikh al-Um?m w? alMuluk, Ash?b al-Futuy? , al-K?mil fi al-T?rikh, al-Bid?y?h w? al-Nih?y?h. All the data obtained were then converted into either the day or the date of the Gregorian era and matched the data in the historical book. The results showed that the data on the date of the death of Ali bin Abi Talib based on astronomical calculations was on Sunday, 17 Ramadan 40 H / 24th January 661 AD.Keywords: controversy, date of death, Imam Ali ra, astronomy
Kontroversi Tanggal Wafat Imam Ali Ra dan Tinjauannya dalam Perspektif Astronomi Islam Nadirin, Akhmad
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 4 No. 1 (2022): Juni 2022
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v4i1.4213

Abstract

Ali bin Abi Talib is one of the companions of the Prophet SAW who is guaranteed to enter heaven along with nine other friends. He led Islam for about four years before being stabbed by Abdurrahman bin Muljam while praying shubuh at the end of 40 AH until he died. In some literature, Imam Ali was killed on Friday night or Sunday night. In addition, there are several opinions in various Islamic historical literature about the date of the death of Ali ibn Abi Talib. Some say on Friday, 17 Ramadan 40 H. There are also opinions that mention 11 Ramadan 40 H. Some even write that Imam Ali died at the end of Rabiul Awal 40 H. This research is intended to answer the problem of Imam Ali's death date in perspective. astronomy. This problem is discussed with qualitative research in the form of library research. The primary source used in this study is T?rikh al-T?bari T?rikh al-Um?m w? alMuluk, Ash?b al-Futuy? , al-K?mil fi al-T?rikh, al-Bid?y?h w? al-Nih?y?h. All the data obtained were then converted into either the day or the date of the Gregorian era and matched the data in the historical book. The results showed that the data on the date of the death of Ali bin Abi Talib based on astronomical calculations was on Sunday, 17 Ramadan 40 H / 24th January 661 AD.Keywords: controversy, date of death, Imam Ali ra, astronomy
JavaScript-Based Digital Universal Astrolabe and Its Accuracy Test in Qibla Direction Calculation Nahwandi, M Syaoqi; Setyawan, Edy; Nadirin, Akhmad
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 11, No 2 (2025): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v11i2.26175

Abstract

The Astrolabe as a classical astronomical instrument, holds significant historical and educational value, yet its use has become limited due to technological advancements. This study aims to develop a JavaScript-based Universal Astrolabe software to digitize the functions of a physical Astrolabe, with a focus on testing the accuracy of Qibla direction calculations. The Research and Development (RD) method was implemented through stages of needs analysis, design, implementation, and accuracy testing. Test results from three locations (Cirebon, Kuala Lumpur, Istanbul) showed minor discrepancies (0°1'56"–0°4'20") between the software's calculations and those derived from the spherical triangle formula using a calculator. These differences were attributed to the smallest rotation angle rounding of the Rete (0°15') and the 1° interval scale for altitude and azimuth. The software offers advantages in flexibility, automated Rete positioning, and ease of presentation compared to physical Astrolabes, though it does not replace the function of direct observation. The interactive simulation of the Universal Astrolabe software facilitates its use for educational purposes in Islamic astronomy (‘Ilm al-Falak).
Co-Authors Edy Setyawan Nahwandi, M Syaoqi