Al-Hilal: Journal of Islamic Astronomy
Vol 5, No 2, 2023

COMPARISON OF SPHERICAL TRIGONOMETRY METHOD, JEAN MEEUS ALGORITHM AND GOOGLE QIBLA FINDER IN DETERMINING OF THE QIBLA DIRECTION OF ISLAMIC HOSPITAL

Firda Yunita Sari (Universitas Islam Negeri Sunan Ampel Surabaya)
Achmad Fachril Yusuf Ababil (Universitas Islam Negeri Sunan Ampel Surabaya)
Urwatun Nafis (Universitas Islam Negeri Sunan Ampel Surabaya)
Nita Ardelia (Universitas Islam Negeri Sunan Ampel Surabaya)
Rofina Muti'atun Khasanah (Universitas Islam Negeri Sunan Ampel Surabaya)
Nurissaidah Ulinnuha (Universitas Islam Negeri Sunan Ampel Surabaya)
Abdulloh Hamid (Universitas Islam Negeri Sunan Ampel Surabaya)



Article Info

Publish Date
03 Nov 2023

Abstract

Accuracy in facing the Qibla is an essential part of performing prayers. This vital value is evident when many mosques are built in public places. This article is qualitative with field data sources, namely coordinate points at the Jemursari Islamic Hospital mosque, Surabaya Islamic Hospital, and Al-Irsyad Hospital Surabaya. Once collected, the data was analyzed using three methods for calculating Qibla direction, namely Spherical Trigonometry, Jean Meeus, and Google Qibla Finder. This article found that the three methods obtained the same results at the Jemursari Islamic Hospital at 294°3'5", at the Surabaya Islamic Hospital at 294° 3'6", and at the Al-Irsyad Surabaya Hospital at 294°3'5 ". However, there is a difference between calculations and field measurements of 2°–7°, including within the Qibla deviation tolerance. It can be concluded that these three methods can accurately determine the Qibla direction in various locations. However, re-checking is required if the measurements exceed the tolerance limits.

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Journal Info

Abbrev

al-hilal

Publisher

Subject

Religion Astronomy Earth & Planetary Sciences Physics Social Sciences

Description

Al-Hilal Journal is a scientific journal published in April and October per year by the Islamic Astronomy at the Faculty of Sharia and Law, Universitas Islam Negeri (UIN) Walisongo, Semarang colaboration with Asosisasi Dosen Falak Indonesia (ADFI). Articles published in this journal are the results ...