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SOLAR EPHEMERIS ACCORDING TO SIMON NEWCOMB

Al-Hilal: Journal of Islamic Astronomy

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Title SOLAR EPHEMERIS ACCORDING TO SIMON NEWCOMB
 
Creator Yaqin, Alamul
 
Subject Algorithm, Solar Ephemeris, Simon Newcomb.
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Description The development of Falak cannot be separated from the ephemeris table, one of them i.e Simon Newcomb solar ephemeris. This ephemeris was used in the initial calculation of Abdur Rachim, one of Falak Indonesia's experts. The purpose of this study was to determine the accuracy of the Simon Newcomb ephemeris reckoning algorithm and its strengths and weaknesses. This paper use descriptive analysis as the research methodology. The results of this study are this Ephemeris is quite accurate because because there aremany correction terms and consider aspects of the planet's relative motion to the Earth that can be seen in the formula for perturbation and nutation correction. The advantage of this ephemeris,it has a long period correction which is useful for calculating the Sun ephemeris in years far enough from the epoch used and directly uses UT time in its calculations so there is no need to convert UT to TD. The weakness of this ephemeris is that it cannot be done manually because the formula used is too long and there are many formula corrections.
 
Publisher Fakultas Syari'ah dan Hukum UIN Walisongo
 
Contributor —
 
Date 2021-04-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Penelitian Kepustakaan
 
Format application/pdf
 
Identifier https://journal.walisongo.ac.id/index.php/al-hilal/article/view/6724
10.21580/al-hilal.2020.2.2.6724
 
Source Al-Hilal: Journal of Islamic Astronomy; Vol 2, No 2 (2020); 287-305
2775-2119
2775-1236
 
Language eng
 
Relation https://journal.walisongo.ac.id/index.php/al-hilal/article/view/6724/3255
 
Rights Copyright (c) 2021 Al-Hilal: Journal of Islamic Astronomy