The Sun

The Sun is the star at the center of the Solar System and is by far the most important source of energy for life on Earth. It is a nearly perfect spherical ball of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process.Its diameter is about 109 times that of Earth, and it has a mass about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. About three quarters of the Sun’s mass consists of hydrogen; the rest is mostly helium, with much smaller quantities of heavier elements, including oxygen, carbon, neon and iron.

 

Sun-spot Sun-Flare Sunflare Indonesia September 29 2015 Pelabuhan Ratu West java Sukabumi Indonesia
Think I caught a sunspot that released a major Solar-flare. Photo from Pelabuhan Ratu, West-Java, Indonesia. The sun appeared very red this afternoon, and I took this photo when it was low on the horizon during sunset. The sunspot is clearly visible.
sunpot indonesia jakarta 2017
Sunpot on the surface of the sun (5 August 2017)
Bromo Volcano November-2015 Indonesia Tengger Caldera
Sunrise over East-Java. 16th September 2015.


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