Noun
An atmosphere of rare matter, composed principally of incandescent hydrogen gas, surrounding the sun and enveloping the photosphere. Portions of the chromosphere are here and there thrown up into enormous tongues of flame.
Source: Webster's dictionaryAt a distance of 197 pc, the size of the chromosphere could be up to 200 AU. Source: Internet
By analysing the spectrum of the chromosphere, it was found that the temperature of this layer of the solar atmosphere increases with increasing height in the chromosphere itself. Source: Internet
Magneto-acoustic waves cannot carry sufficient energy upward through the chromosphere to the corona, both because of the low pressure present in the chromosphere and because they tend to be reflected back to the photosphere. Source: Internet
Solar prominences rise up through the chromosphere from the photosphere, sometimes reaching altitudes of 150,000 km. Source: Internet
Figure 1 shows the trends which density and temperature follow through the chromosphere. Source: Internet
It is not yet fully understood what phenomenon causes the temperature of the chromosphere to paradoxically increase further from the Sun 's interior. Source: Internet