- a scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted.
- a gaseous envelope surrounding a star.
Origin of chromosphere
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for chromosphere
The outer surface of the chromosphere is not by any means even.Astronomy of To-day
Cecil G. Dolmage
Their light shines through the chromosphere and the spots are ruptures in this envelope.
Beneath the chromosphere is the layer of the sun from which emanates the light by which we see it, called the photosphere.
He argues that it is formed within the mass of cooled hydrogen drawn from the chromosphere into the vortex of the cyclone.Essays: Scientific, Political, & Speculative, Vol. I
Just above the reversing layer lies the chromosphere, which is between five thousand and ten thousand miles in depth.Astronomy for Young Folks
Isabel Martin Lewis
- a gaseous layer of the sun's atmosphere extending from the photosphere to the corona and visible during a total eclipse of the sun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for chromosphere
Online Etymology Dictionary, © 2010 Douglas Harper
- A glowing, transparent layer of gas surrounding the photosphere of a star. The Sun's chromosphere is several thousand kilometers thick, is composed mainly of hydrogen at temperatures of 6,000° to 20,000°K, and gives off reddish light.
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