Astronomical Refraction above Kufa Astronomical observatory

Mohammed Jaafar AL-Bermani, Faeq Abdullah AL-Temimei


    Astronomical refraction addresses ray-bending effects for objects outside the earth’s atmosphere in relation to an observer within the atmosphere. In this paper is a study of the Atmospheric refraction and its effect on the light  coming from celestial body  by using Astronomic Refraction model above Kufa Astronomical Observatory  at different zenith angles and different weather conditions. These weather parameters were collected from the weather link station of the observatory.             

The results  are perfect agreement with other models

Full Text:



YU Yong, QI Zhao-xiang and et al.” The Method of Differential Measurement of Astronomical Refraction and Results of Trial Observations”,Chinese Astronomy and Astrophysics Vol.33 pp.322–332, (2009).

Michael E. Thomas and Richard I. Joseph.” Astronomical Refraction”, Johns Hopkins APL Technical Digest, Vol. 17, No 3, (1996).

D. Anderson and Lloyd, S. A” Polar twilight UV-visible radiation field: perturbations due to multiple scattering, ozone depletion, stratospheric clouds, and surface albedo”, J. Geophysics. Res., 95, pp.7429–7434,(1990).

D.Majistre and et al. “ Effects of refraction on photochemical calculations”, J. Geophysics. Res., 100,pp. 18 817–18 822, (1995).

S. Cavazzani, S. Ortolani and C.Barbieri.” Fluctuations of Photon Arrival Times in Free Atmosphere”,J . Astronomy and Physics,(2011).

H.Karttunen and et al ."fundamental Astronomy", Fifth Edition,(2007).

M. Roderick."Methods for Calculating Solar Position and Day Length including Computer Programs and Subroutines",Western Australian Department of Agriculture South Perth Western Australia ,(1992).

P.Mihas.” Developing Ideas of Refraction, Lenses and Rainbow Through the Use of Historical Resources”, Science & Education 17:PP.751–777,(2012).

J. Saastamoinen." Introduction to the practical computation of Astronomical Refraction", Bulletin Geodesies. PP.383-397, (1972).

J. Saastamoinen, ”Contributions to the theory of atmospheric refraction”, J. Bulletin Geodesies. PP. 279-298, (1972a).

G .Krzysztof." Impact of the atmospheric refraction on the precise astrometry with adaptive optics in infrared", New Astronomy,No14,PP.521–527,(2009).

M. Wei, Y. Lei and T. Qiong-xian.” Path Bending Correction for Refraction Delay of Electromagnetic Waves”, J. Chinese Astronomy and Astrophysics,Vol. 32, PP. 335–341,(2008).

D. Peter.” Atmospheric refraction effects in Earth remote sensing”, ISPRS Journal of Photogrammetry & Remote Sensing, Vol.54,PP. 360–373,(1999).


  • There are currently no refbacks.