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Bhattacharya, Sandip
- Astronomical Significance of Sun-Dials in Srirangapatna, Karnataka, India
Abstract Views :233 |
PDF Views:76
Authors
Affiliations
1 Department of Physics, JECRC University, Jaipur 303 905, IN
2 Manipal University Jaipur 303 007, IN
3 Astronomy and Astrophysics Resource Development and Research Academy (AARDRA), Jaipur 302 017, IN
1 Department of Physics, JECRC University, Jaipur 303 905, IN
2 Manipal University Jaipur 303 007, IN
3 Astronomy and Astrophysics Resource Development and Research Academy (AARDRA), Jaipur 302 017, IN
Source
Current Science, Vol 116, No 5 (2019), Pagination: 811-816Abstract
This article reports astronomical significance of two special sun-dials installed by Tipu Sultan in Sriran-gapatna in Karnataka, India. One sun-dial is situated in Jamia Masjid, a prominent mosque and the other is situated in Hyder Ali’s tomb, popularly known as Gumbaz. These sun-dials are very different from most known sun-dials in design and concept. Both the sun-dials are quite identical. The astronomical idea upon which these sun-dials were designed are explored and reported here.Keywords
Analema, Local Time, Time Calibration, Stone Observatories, Sun-Dials.Full Text
References
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- Astronomical Explanation of the Enigmatic Sundial in Agra, India
Abstract Views :136 |
PDF Views:83
Authors
Affiliations
1 Department of Physics, JECRC University, Jaipur 303 905, IN
2 Manipal University, Jaipur 303 007, IN
3 Astronomy and Astrophysics Resource Development and Research Academy, Jaipur 302 001, IN
1 Department of Physics, JECRC University, Jaipur 303 905, IN
2 Manipal University, Jaipur 303 007, IN
3 Astronomy and Astrophysics Resource Development and Research Academy, Jaipur 302 001, IN
Source
Current Science, Vol 120, No 5 (2021), Pagination: 942-945Abstract
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.Full Text
References
- 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.
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- 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.