ABSTRACT Sun, a star of spectral type G2 is the main source of energy to the Earth. Being close to the Earth, Sun pro-duces a resolvable disk of great detail, which is not possible for other stars. Solar flares and coronal mass ejections are the enigmatic phenomena that occur in the solar atmosphere and regularly bombard the Earth’s environment in addition to the solar wind. Thus it becomes important for us not only to understand these physical processes of the Sun, but in addition how these activities affect the Earth and it’s surrounding. Thus a branch of study called ‘Space Weather’ had emerged in the recent past, which connects the Sun Earth rela-tions. This paper details about the solar activity and associated energetic phenomena that occur in the atmosphere of the Sun and their influence on the Earth.
Cite this paper
nullK. Raman, "Space Weather – Sun Earth Relations," International Journal of Astronomy and Astrophysics, Vol. 1 No. 1, 2011, pp. 10-14. doi: 10.4236/ijaa.2011.11003.
 R. C. Carrington, “Description of a Singular Appearance Seen in the Sun on September 1, 1859,” Monthly Notices of Royal Astronomical Society, Vol. 20, November 1859, pp. 13-15.
 R. Hodgson, “On a Curious Appearance Seen in the Sun,” Monthly Notices of Royal Astronomical Society, Vol. 20, November 1859, pp. 15-16.
 S. Chandrasekhar, “The Maximum Mass of Ideal White Dwarfs,” Astrophysical Journal, Vol. 74, No. 1, July 1931, pp. 81-82. doi:10.1086/143324
 H. Zirin, “Astrophysics of the Sun,” Cambridge University Press, Cambridge, 1988.
 R. J. Bray and R. E. Loughhead, “Sunspots,” Chapman and Hall, London, 1964.
 G. E. Hale, “On the Probable Existence of a Magnetic Field in Sunspots,” Astrophysical Journal, Vol. 28, November 1908, pp. 315-347.
 E. R. Priest, “Dynamics and Structure of Quiescent Prominences,” Kluwer Academic Publications, Dordrec-
 tht, 1989.
 A. B. Sev-erny, “Solar Flares,” Annual Review of Astronomy As-trophysics, Vol. 2, September 1964, pp. 363-400.doi:10.1146/annurev.aa.02.090164.002051
 Z. Svestka, “Solar Flares”, D. Reidel Publishing Com-pany, Dordrecht, Holland, 1976.
 K. S. Raman, R. Selvendran and R. Thiagarajan, “Sunspot Motions Associated with Flares,” Solar Physics, Vol. 180, No. 1-2, June 1998, pp. 331-341.
 R. M. MacQueen, J. A. Eddy, J. T. Gosling, E. Hildner, R. H. Munro, G. A. Newkirk Jr., A. I. Poland and C. L. Ross, “The Outer Solar Corona Observed from Skylab: Preliminary Re-sults,” Astrophysical Journal Letters, Vol. 187, January 1974, pp. 85-88. doi:10.1086/181402
 S. W. Kahler, “Solar Flares and Coronal Mass Ejections,” Annual Re-view of Astronomy Astrophysics, Vol. 30, January 1992, pp. 113-141.
 B. C. Low, “Magnetohydrodynamic Processes in the Solar Corona-Coronal Mass Ejections and Magnetic Helicity,” Plasma Physics, Vol. 1, May 1994, pp. 1684-1690.
 J. T. Gosling, “The Solar Flare Myth,” Journal of Geophysical Research, Vol. 98, No. 11, No-vember 1993, pp. 18937-18950. doi:10.1029/93JA01896
 A. J. Hundhausen, “The Origin And Propagation Of Coronal Mass Ejections,” Proceedings Sixth International Solar Wind Conference, Colorado, 1988, pp.181-186.