Air glow above the horizon of the Earth
Date
Air glow above the horizon of the Earth. The green color is caused by the 557.7-nm transition of atomic oxygen as shown by its energy spectrum in the inset (not to scale). The spectrum (total width: 170 MHz) indicated by the white curve is the ground state emission of atomic oxygen at 4.7 THz. The image of the air glow was taken by astronauts aboard the International Space Station.
Credit
(DLR/NASA)
Image Number
SCI2021_0022
Additional Information
Air glow above the horizon of the Earth
Instrument
GREAT
More Information
