Author(s)

K. Sundara Raman

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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.

Sun, Sunspot, Prominence, Solar Flare, Coronal Mass Ejection

K. 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.