Oxygen Emission Spectroscopy
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PHYSICS
Spectroscopy
Oxygen Emission Spectroscopy
Doubly ionized oxygen reveals the secrets of cosmic nebulae through its distinctive green emission lines
30 Jan 2026
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What information can oxygen emission spectroscopy provide about astronomical nebulae?
It reveals the composition, temperature, and density of the interstellar gas.
It measures the gravitational pull of nearby stars.
It determines the age of the nebula by radioactive decay.
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