PHOTOSPHERE

luminous, apparently opaque layer of gases that forms the visible surface of the sun or any other star. The photosphere lies between the dense interior gases and the more attenuated gases of the chromosphere. The incandescent gases of the photosphere, estimated to be at temperatures near 6,000 degrees Kelvin, are so much brighter than the other layers of the sun that they seem to form a surface. These gases are in a constant state of agitation due to convection currents that reach down to 150,000 mi (241,000 km) below the photosphere. Differences in the density of the gases result in a grainy appearance of the photosphere; the small bright patches, or granules, are several hundred miles in diameter and are constantly shifting. Another feature of the photosphere, observed only near the sun's edge, is the appearance near sunspots of bright, veinlike regions known as faculae.

____________________

The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

-37439-

Top...
Search the Library
Books
Journals
Magazines
Newspapers
Encyclopedia
Advanced Search
About Questia
Questia is the world's largest online academic library offering full-text books, journals, and articles on thousands of topics.

Join Now...
Questia Books and Articles on: Photosphere
We found: 136 results
By media type:
 

Books:

 

107  

 

Journal articles:

 

8  

 

Magazine articles:

 

13  

 

Newspaper articles:

 

2  

 

Encyclopedia articles:

 

6  
 

books on: Photosphere  - 107 results

       More book Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Mindsteps to the Cosmos
Book by Gerald S. Hawkins; Harper & Row, 1983
Subjects: Astronomy
...eclipse the moon exactly covers the photosphere and the chromosphere comes into view...shaken by explosions from below. The photosphere is a seething inferno where mushroom...500 miles of territory. Sometimes the photosphere erupts with more than normal violence...
2.
The Study of Sociology
Book by Herbert Spencer; D. Appleton, 1896
Subjects: Sociology, Sociology--Study And Teaching
terior burst through the photosphere ? This supposition, while it may be held...permeable by light from the remoter side of the photosphere, and hence holes through the near side of the photosphere would not look dark. There is, however...
3.
Larousse Encyclopedia of Astronomy
Book by Lucien Rudaux, G. Vaucouleurs De, F. L. Whipple; Prometheus Press, 1962
Subjects: Astronomy
between a stars photosphere and, on one hand, its interior...increasingly rarefied atmosphere. The photosphere can only be defined as the totality...have a comparatively sharply defined photosphere. But the gases of a highly rarefied...
4.
Wonders of the Sky
Book by Tamra Andrews; Libraries Unlimited, 2004
Subjects: Astronomy--Popular Works
...brightest part of the Sun is called the photosphere, and the temperature in the photosphere varies from close to 8,000 de- grees...10,000 degrees Fahrenheit. Outside the photosphere is the chromosphere and above that is the...
5.
Earth Science
Book by John Gabriel Navarra, Joseph S. Weisberg, Frank Michael Mele; John Wiley & Sons, 1971
Subjects: Earth Sciences
...layers and, finally, into space. The Photosphere The visible surface of the sun is called the photosphere sphere of light . It is this part of...it is observed that the edges of the photosphere are cooler than the central region...
More book Results: 1-10 11-20 21-30 31-40 41-50 >>

Top...
 

journal articles on: Photosphere  - 8 results

       More journal Results: 1-8 >>  
 
1.
Dreaming Holmberry-Lipped Tess: Aboriginal Reverie and Spectatorial Desire in Tess of the D'urbervilles
Journal article by Adam Gussow; Studies in the Novel, Vol. 32, 2000
Subjects: Characters and characteristics in literature--Criticism, interpretation, etc., Sexuality in literature--Criticism, interpretation, etc., Women--Portrayals, depictions, etc.
...with the hills, dales, fields, and photosphere of Wessex--may be seen from an Aboriginal...mingled with the sunshine in an ideal photosphere which surrounded her as she bounded...lurk a joy. (P. 157) The "ideal photosphere" is a double-edged figure, at once...
2.
An Eye for the Tropics
Journal article by Jacqueline Francis; Nka : Journal of Contemporary African Art, 2008
...British-bom photographer John Ernest Williamsons underwater photosphere, a craft that took on board tourists who waited to view...waters and take photographs of the seas flora anc fauna, the photosphere overcame the perceived insufficiencies of marine painting...
3.
A Synthesis of Content Enhancement Strategies for Teaching Students with Reading Difficulties at the Middle and Secondary Level
Journal article by Joseph M. Sencibaugh; Reading Improvement, Vol. 45, 2008
Subjects: Junior high school teachers--Practice, Middle and junior high school teachers--Practice, Reading comprehension--Management, Science education--Study and teaching, Sciences education--Study and teaching, Social science education--Study and teaching
...transparent layer that extends about 10,000 kilometers above the photosphere. c. The--, from the Latin "crown," is the outermost...Suns Surface <br/ 1. Optical telescopes reveal that the photosphere has a grainy <br/ appearance, called--. <br/ 2...
4.
"Hearing Hardy: Soundscapes and the Profitable Reader"
Journal article by David James; Journal of Narrative Theory : JNT, Vol. 40, 2010
Subjects: Reading, Syntax
...there were no invidious eyes upon her, sent up her spirits wonderfully. Her hopes mingled with the sunshine in an ideal photosphere which surrounded her as she bounded along against the soft south wind. She heard a pleasant voice in every breeze, and...
5.
Cosmic Dancers on History's Stage? The Permanent Revolution in the Earth Sciences
Journal article by Mike Davis; New Left Review, Vol. a, 1996
Subjects: Right And Left (Political Science), Socialism
...studies a single Sun-Earth system: a chain of intimately coupled regions extending from the Suns surface to Earth the solar photosphere, the solar corona, the solar wind, Earths magnetosphere, Earths ionosphere, and Earths atmosphere. 58 Herbert Shaw...
More journal Results: 1-8 >>

Top...
 

magazine articles on: Photosphere  - 13 results

       More magazine Results: 1-10 11-13 >>  
 
1.
Darkening the Sun
Magazine article by Craig Deforest; World and I, Vol. 13, July 1998
Subjects: Eclipses, Solar--Description and travel, Solar corona, Solar eclipses--Description and travel, Sun--Corona
...the corona! A tiny piece of photosphere (the Suns bright surface) remains...declines with altitude up to the photosphere, which is at about 6,000 degrees...degrees F). But beyond the photosphere, strange things happen: The...
2.
A Unique New Exposure Meter That Was Custom-designed for the Cinematographer
Magazine article by Herb A. Lightman; American Cinematographer, Vol. 59, September 1978
...hemispherical diffuser, which we call the Photosphere(TM). And the Professional Il and...collector hemisphere, which you call the Photosphere. Is it more rugged than your original...you can actually drop the meter on the photosphere with no damage at all to the photosphere...
3.
Star Power
Magazine article by Michael J. Caduto; Green Teacher, Summer 2011
Subjects: Alternative energy, Electricity distribution, Households, Light, Satellite communications, Solar energy
...322 km) thick layer called the photosphere, which is about 10,000 F (5,500...500 C) cooler than the rest of the photosphere, so they appear darker. Some sunspots...2011 through 2013. Surrounding the photosphere is another, somewhat hotter layer of...
4.
New Spectra Series Ii Electronic Exposure Meters
Magazine article; American Cinematographer, Vol. 57, December 1976
...still retaining its basic rectangular configuration, large "photosphere" light collector and the feature of employing multiple slides...and contrast do not affect reading accuracy. The Spectra PHOTOSPHERE gathers all light falling on the subject and, instantly...
5.
Our Violent Star
Magazine article by Mariette Dichristina; Popular Science, Vol. 249, September 1996
Subjects: Astronomy, Sun
...standing puzzles. For instance, scientists have wondered why the corona is 1 million deg.C, while the suns surface (photosphere) is 5,600 deg.C. In an area where solar-atmosphere temperatures were rapidly rising, SOHO observed small explosions...
More magazine Results: 1-10 11-13 >>

Top...
 

newspaper articles on: Photosphere  - 2 results

 
 
1.
Box Office: Display Explores Loss and Rebirth of Steelworks Site; Arts & Entertainment
Newspaper article; Western Mail (Cardiff, Wales), August 4, 2008
Subjects: Steel industry, Waterfront development
...installations, documentary, printmaking, painting and poetry as well as the UKs first public showcase of the WrightGeorge Photosphere concept, a two metre sphere showing a 360deg photograph. For more information visit www.ghostsinarmour.com, www...
2.
Myth of Rising Fog
Newspaper article; The Daily Mail (London, England), May 29, 2009
...realised by watching sunspots - those blotches caused as magnetic fields swirl around on the Suns apparent surface (the photosphere). Each sunspot can be the size of Earth, and they rise and fall in numbers to a cycle of 11 years. (The next maximum...


Top...
 

encyclopedia articles on: Photosphere  - 6 results

       More encyclopedia Results: 1-6 >>  
 
1.
Photosphere
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PHOTOSPHERE luminous, apparently opaque layer of...surface of the sun or any other star. The photosphere lies between the dense interior gases...chromosphere . The incandescent gases of the photosphere, estimated to be at temperatures near...
2.
Sun , in Astronomy
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...bright surface of the sun is called the photosphere . Its temperature is about 6,000 degrees Celsius. The photosphere appears darker near the edge (limb...slightly cooler layer of gases above the photosphere, known as the reversing layer, which...
3.
Chromosphere
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...in thickness and lies between the photosphere (the suns visible surface) and the...Plages At 600 mi (1,000 km) above the photosphere, the chromosphere separates into cool...against the bright background of the photosphere. Until the middle of the 19th cent...
4.
Faculae
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
FACULAE see photosphere . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
5.
Granule
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
GRANULE in astronomy: see photosphere . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
More encyclopedia Results: 1-6 >>

Top...
 About Questia   ::   Privacy   ::   Contact