The Unified Astronomy Thesaurus

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Main sequence stars original
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Stellar evolutionary types original
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Zero-age main sequence stars original
Observational astronomy original
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Astronomical instrumentation original
Astronomical methods original
Astronomical research original
Astronomical techniques original
Telescopes original
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Astronomical instrumentation original
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Automated telescopes original
Gamma-ray telescopes original
Grazing incidence telescopes original
Ground telescopes original
Meridian circles original
Neutrino telescopes original
Optical telescopes original
Radio telescopes original
Solar telescopes original
Space telescopes original
Telescope mounts original
Wide-field telescopes original
Beta Lyrae stars original
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Eclipsing binary stars original
Ellipsoidal variable stars original
DQ Herculis stars original
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Novae original
definition "A type of cataclysmic variable binary star system with a white dwarf and a cool main-sequence secondary star." - Wikipedia
Far infrared astronomy original
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Infrared astronomy original
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Far infrared interferometry original
Horizontal branch stars original
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Stellar evolutionary types original
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Extreme horizontal branch stars original
Zero-age horizontal branch stars original
Sunspots original
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Solar active regions original
Solar physics original
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Delta sunspots original
Ephemeral active regions original
Maunder minimum original
Sunspot flow original
Sunspot groups original
Sunspot number original
Wilson effect original
Protostars original
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Interstellar medium original
Stellar types original
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Bok globules original
Cocoon stars original
Cometary nebulae original
Protoplanetary disks original
Young stellar objects original
T Tauri stars original
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Emission line stars original
Irregular variable stars original
Young stellar objects original
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Classical T Tauri stars original
Weak-line T Tauri stars original