Coronium
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Coronium was the name of a suggested chemical element that was hypothesised in the 19th century. The name, inspired by the solar corona, was given by Gruenwald in 1887. A new atomic thin green line in
A solar eclipse, with the solar corona visible.
Solar corona
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The solar corona is the outermost layer of the Sun's atmosphere. It is a region filled with relatively hot, tenuous plasma that is structured by the solar magnetic field.
Coronium
…Coronium was the name of a suggested chemical element that was hypothesised in the 19th century. The name, inspired by the solar corona, was given by Gruenwald in 1887. A new atomic thin green line in the solar corona was then considered to be emitted by a new element unlike anything…
Temperatures in the solar atmosphere rise precipitously with height in the transition region between the chromosphere and corona.
The light visible close to the Sun during a total solar eclipse originates primarily from the K-corona.
The zodiacal light from sunlight scattered by interplanetary dust merges with the F-corona close to the Sun.