Research Article | OPEN ACCESS
Periodicity and Circumstances of Occultations of Some Bright Stars
1K. Rupa, 2Padmaja Venugopal and 3S. Balachandra Rao
1Global Academy of Technology, Rajarajeshwari Nagar, Bangalore-560098, India
2Department of Mathematics, SJB Institute of Technology, Kengeri, Bangalore-560060, India
3Gandhi Centre of Science and Human Values, Bharatiya Vidya Bhavan, #43/1, Race Course Road, Bangalore-560001, India
Research Journal of Applied Sciences, Engineering and Technology 2014 7:879-885
Received: June 17, 2014 | Accepted: July 19, 2014 | Published: August 20, 2014
Abstract
In this paper, we present a study of the phenomenon of lunar occultation of visible stars. In Indian astronomical texts, generally the lunar occultations of some particular visible stars like Regulus (α Leonis) and Spica (α Virginis) are considered important. We are presenting the results of the periodicity of this phenomenon. The instants of true conjunctions of the Moon with some of the stars are discussed. Further, these conjunctions are of greater interest when they turn out to be occultations. We have worked out the actual circumstances of some occultations of stars cited by earlier authors as also for modern times.
Keywords:
Conjunction , occultation , parallax , regulus , semi-diameter , spica,
References
-
Balachandra, R.S. and S.K. Uma, 2006. Grahalaghavam of Ga-esa Daivaj-a. IJHS, INSA, New Delhi, pp: S189.
-
Balachandra, R.S. and V. Padmaja, 2009. Transits and occultations in Indian astronomy. Bhavan's Gandhi Centre of Science and Human Values, Bharatiya Vidya Bhavan, Race Course Road, Bangalore.
-
Balachandra, R.S., S.K. Uma and V. Padmaja, 2008. Conjunctions, transits and occultations by siddhantic procedures. Ind. J. His. Sc., INSA, New Delhi, pp: 515-551.
-
Ebenezer Burgess, T., 1989. The Surya Siddhanta. Phanindralal Gangooly Motilal Banarsidass Pub., Delhi, pp: 187.
-
Kim, P., 2012. Mathematics in India. Hindustan Book Agency, New Delhi, pp: 33.
-
Meeus, J., 1983. Astronomical tables of the Sun, Moon and Planets. Willmann-Bell, Richmond, Virginia.
-
Meeus, J., 1997. Mathematical Astronomy Morsels. Willmann-Bell, Virginia, pp: 114.
-
Pedersen, O., 1974. A Survey of the Almagest. Odense University Press, Denmark.
-
Swerdlow, N.M. and O. Neugebauer, 1984. Mathematical Astronomy in Copernicus's De Revolutionibus. In: Toomer, G.J. (Ed.), Springer-Verlag, New York.
CrossRef -
Venkatesh, K.J., 1938. Reprinted, 2008. Chakhamba Krishnadas Academy, Varanasi.
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
|
|
 |
ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
