Doubly ionized oxygen
Doubly ionized oxygen
Oxygen ion in astronomy and atomic physics.
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First pulled by slime, Nov 2, 2026
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H II region
Large, low-density interstellar cloud of partially ionized gas.
14%
Emission nebula
Nebula formed of ionized gases that emit light of various wavelengths.
11%
Nebulium
Proposed element found in astronomical observation of a nebula.
9%
Grotrian diagram
5.9%
Oxygen
Chemical element with atomic number 8 (O).
2.8%
Planetary nebula
Type of emission nebula created by dying red giants.
2.8%
Ira Sprague Bowen
American physicist and astronomer (1898–1973).
2.4%
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