![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
Astronomical Explanation of the Enigmatic Sundial in Agra, India
This study explains the functioning of a sundial in Moti Masjid, a mosque in Red Fort, Agra, India. The instrument, made in Islamic style, had remained enigmatic for a long time. The present study is an effort to resolve this enigma. The gnomon length for the sundial is ascertained and its functioning has been examined using on-site observations as well as computations.
Keywords
Azimuth, Meridian, Sundial, Time-Keeping, Zenith.
User
Font Size
Information
- Pandya, A., Tej Bahadur and Bhattacharya, S., Astronomical significance of sun-dials in Srirangapatna. Curr. Sci., 2018, 116(5), 811–816.
- Pandya, A., Tej Bahadur and Bhattacharya, S., Sun-dial for timekeeping in Jaisalmer Fort. Indian J. Hist. Sci., 2017, 52(2), 137–146; http://insa.nic.in/UI/Journalarticle.aspx?jid=Mw==&&VID=MzMw&&IsNm=SXNzdWUgMg==
- Sarma, S. R., A Descriptive Catalogue of Indian Astronomical Instruments, 2017, pp. 3602–3604 and references therein; http://www.srsarma.in/catalogue.php
- Ibid; pp. 3603–3604.
- King, David A., Astronomy and Islamic society: Qibla, gnomonics and timekeeping. In Encyclopedia of the History of Arabic Science (ed. Roshid), 1996, vol. 1, pp. 128–184, 166–167.
- Karim, A. S. M., A Guide to PRAYER in Islam, The Co-operative Office for Call and Foreigners’ Guidance at Sultanah, Riyadh, 1997, pp. 16–17; http://www.islamicbook.ws/english/english-020.pdf
- http://praytime.org/calculation
- http://astronomyaardra.org/Astronomy%20Resources/sun-ra-dec.f.
![](https://i-scholar.in/public/site/images/abstractview.png)
Abstract Views: 174
![](https://i-scholar.in/public/site/images/pdfview.png)
PDF Views: 102