What gases make the sun?
Sun composition
Solar radiation emerges at the photosphere.Detailed spectral studies reveal that the composition of this region is about 90 percent hydrogen, 9.9 percent helium, and a small admixture of heavy elements (e.g., iron, calcium, and sodium).
This reflects the chemical makeup of the material from which the Sun was formed, though fusion reactions will have altered the mix in the interior.
The Sun
The Sun
Amazon Price: $17.05 (as of 12/01/2009)![]()
Awe-inspiring and familiar, comforting yet sometimes frightening, the sun is the center around which all life revolves. Now, an expert on solar images teams up with a noted science writer to present a photographic book devoted entirely to the sun, illustrating the star we know and revealing recent discoveries.
Dramatic images from photographers, observatories, and satellites are organized as viewed first from the ground, then from earth's atmosphere and the edge of space, and finally from the surface of the sun itself. Through these images and a clear, precise text, the authors explore the intricate dance between the sun and earth, examining this relationship in both mythical and scientific terms. Perhaps best of all, the book's compact, square size makes The Sun as inviting to hold as it is to read.
Recommended
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Sun resources
- SOHO MDI Continuum Latest Image
- SOHO MDI Continuum Latest Image.
- BBC - Science & Nature - Space - The Sun
- Explore our nearest star with bbc.co.uk's guide to the Solar System.
- The Sun : The solar system : Astronomy fact files : Astronomy & time : Explore online : NMM
- The diameter of the Sun is 1,400,000 km (840,000 miles) which is more than 100 times the diameter of the Earth. Its mass is more than 300,000 times that of the Earth.
Sun news
- Sun takes big fall in server market
- by Liau Yun Qing All top five server vendors globally saw declines in revenue and shipment in the third quarter of 2009, with Sun Microsystems registering ...
- Las Vegas Sun owner lays off staff amid reorg
- Brian Greenspun, chairman of Greenspun Corp. and editor of the Las Vegas Sun, says the company regrets the cuts but must face up to its challenges.
- Oracle Applications Users Group Supports Acquisition of Sun
- In a letter, OAUG President Raymond Payne wrote that Oracle's acquisition of Sun would simplify the integration process associated with merging several ...
- Sun Upgrades VirtualBox Virtualization Software
- By Antone Gonsalves Sun Microsystems released an upgrade of its VirtualBox virtualization software to allow users to move running virtual machines from one ...






















