Stars. Unified Astronomy Thesaurus

Stars

Broader Terms

BT↑ Astronomical objects

More specific terms

NT2 ↓ Active stars ►▼
- NT3 ↓ Emission line stars ►▼
  - NT4 ↓ Be type stars
  - NT4 ↓ Early-type emission stars ►▼
    - NT5 ↓ Ae stars ►
    - NT5 ↓ Be stars ►
    - NT5 ↓ Oe stars
    - NT5 ↓ Oef stars
    - NT5 ↓ Of stars
    - NT5 ↓ Wolf-Rayet stars ►
  - NT4 ↓ Flash stars
  - NT4 ↓ Gamma Cassiopeiae stars
  - NT4 ↓ H-alpha stars
  - NT4 ↓ Luminous blue variables
  - NT4 ↓ Me stars
  - NT4 ↓ Me variable stars
  - NT4 ↓ Mira variable stars
  - NT4 ↓ RC Aurigae stars
  - NT4 ↓ S Doradus stars
  - NT4 ↓ Symbiotic binary stars ►▼
    - NT5 ↓ RR Telescopii stars
    - NT5 ↓ Symbiotic novae
    - NT5 ↓ Z Andromedae stars
  - NT4 ↓ T Tauri stars ►▼
    - NT5 ↓ Classical T Tauri stars
    - NT5 ↓ FU Orionis stars
    - NT5 ↓ Weak-line T Tauri stars
  - NT4 ↓ X-ray stars ►▼
    - NT5 ↓ Single X-ray stars
  - NT4 ↓ Z Andromedae stars
- NT3 ↓ X-ray stars ►▼
  - NT4 ↓ Single X-ray stars
NT2 ↓ Binary stars ►▼
- NT3 ↓ Accreting binaries
- NT3 ↓ Algol variable stars
- NT3 ↓ Astrometric binary stars
- NT3 ↓ Bursters
- NT3 ↓ Close binary stars ►▼
  - NT4 ↓ Ellipsoidal variable stars ►▼
    - NT5 ↓ Beta Lyrae stars
  - NT4 ↓ Semi-detached binary stars
  - NT4 ↓ Z Andromedae stars
- NT3 ↓ Companion stars ►▼
  - NT4 ↓ Substellar companions
  - NT4 ↓ Tertiary stars
- NT3 ↓ Contact binary stars
- NT3 ↓ Detached binary stars ►▼
  - NT4 ↓ W Ursae Majoris variable stars
- NT3 ↓ Eclipsing binary stars ►▼
  - NT4 ↓ Algol variable stars
  - NT4 ↓ Beta Lyrae stars
  - NT4 ↓ DQ Herculis stars
  - NT4 ↓ R Canis Majoris stars
  - NT4 ↓ Upsilon Sagittarii stars
  - NT4 ↓ W Ursae Majoris variable stars
- NT3 ↓ Eruptive binary stars ►▼
  - NT4 ↓ Alpha2 Canum Venaticorum stars
  - NT4 ↓ Dwarf novae ►▼
    - NT5 ↓ SU Ursae Majoris stars
    - NT5 ↓ SX Arietis variables
    - NT5 ↓ U Geminorum stars
    - NT5 ↓ WZ Sagittae stars
    - NT5 ↓ Z Camelopardalis stars
  - NT4 ↓ Symbiotic binary stars ►▼
    - NT5 ↓ RR Telescopii stars
    - NT5 ↓ Symbiotic novae
    - NT5 ↓ Z Andromedae stars
  - NT4 ↓ X-ray binary stars ►▼
    - NT5 ↓ High-mass X-ray binary stars
    - NT5 ↓ Low-mass X-ray binary stars
    - NT5 ↓ X-ray bursters
- NT3 ↓ Interacting binary stars ►▼
  - NT4 ↓ Cataclysmic variable stars ►▼
    - NT5 ↓ AM Herculis stars
    - NT5 ↓ Nova-like variable stars ►
    - NT5 ↓ Novae ►
    - NT5 ↓ SX Arietis variables
    - NT5 ↓ Symbiotic novae
    - NT5 ↓ UV Persei stars
  - NT4 ↓ X-ray binary stars ►▼
    - NT5 ↓ High-mass X-ray binary stars
    - NT5 ↓ Low-mass X-ray binary stars
    - NT5 ↓ X-ray bursters
- NT3 ↓ Interferometric binary stars
- NT3 ↓ Primary stars
- NT3 ↓ Relativistic binary stars
- NT3 ↓ Semi-detached binary stars
- NT3 ↓ Spectroscopic binary stars ►▼
  - NT4 ↓ Two-spectrum binary stars
- NT3 ↓ Visual binary stars
- NT3 ↓ Wide binary stars ►▼
  - NT4 ↓ Visual binary stars
NT2 ↓ Blue stellar objects ►▼
- NT3 ↓ Blue galaxies
- NT3 ↓ Faint blue stars ►▼
  - NT4 ↓ Blue stragglers
- NT3 ↓ Luminous blue variable stars
NT2 ↓ Cocoon stars
NT2 ↓ Collapsed stars ►▼
- NT3 ↓ Neutron stars ►▼
  - NT4 ↓ Magnetars ►▼
    - NT5 ↓ Soft gamma ray repeaters
  - NT4 ↓ Neutron star cores
  - NT4 ↓ Pulsars ►▼
    - NT5 ↓ Binary pulsars ►
    - NT5 ↓ Millisecond pulsars
    - NT5 ↓ Optical pulsars
    - NT5 ↓ Radio pulsars
    - NT5 ↓ Rotation powered pulsars
  - NT4 ↓ Relativistic stars ►▼
    - NT5 ↓ Relativistic binary stars
- NT3 ↓ Stellar mass black holes
NT2 ↓ Compact stars ►▼
- NT3 ↓ Black holes ►▼
  - NT4 ↓ Charged black holes ►▼
    - NT5 ↓ Kerr-Newman black holes
    - NT5 ↓ Reissner–Nordström black holes
  - NT4 ↓ Classical black holes
  - NT4 ↓ Event horizons
  - NT4 ↓ Nonrotating black holes ►▼
    - NT5 ↓ Reissner–Nordström black holes
    - NT5 ↓ Schwarzschild black holes
  - NT4 ↓ Primordial black holes
  - NT4 ↓ Rotating black holes ►▼
    - NT5 ↓ Kerr black holes
    - NT5 ↓ Kerr-Newman black holes
  - NT4 ↓ Stellar mass black holes
  - NT4 ↓ Supermassive black holes
  - NT4 ↓ Uncharged black holes ►▼
    - NT5 ↓ Kerr black holes
    - NT5 ↓ Schwarzschild black holes
- NT3 ↓ Compact binary stars ►▼
  - NT4 ↓ Binary pulsars ►▼
    - NT5 ↓ X-ray pulsars
  - NT4 ↓ X-ray binary stars ►▼
    - NT5 ↓ High-mass X-ray binary stars
    - NT5 ↓ Low-mass X-ray binary stars
    - NT5 ↓ X-ray bursters
- NT3 ↓ Degenerate stars ►▼
  - NT4 ↓ Degenerate dwarfs ►▼
    - NT5 ↓ White dwarfs ►
  - NT4 ↓ Neutron stars ►▼
    - NT5 ↓ Magnetars ►
    - NT5 ↓ Neutron star cores
    - NT5 ↓ Pulsars ►
    - NT5 ↓ Relativistic stars ►
NT2 ↓ Degenerate stars ►▼
- NT3 ↓ Degenerate dwarfs ►▼
  - NT4 ↓ White dwarfs ►▼
    - NT5 ↓ DA stars
    - NT5 ↓ DB stars
    - NT5 ↓ DO stars ►
    - NT5 ↓ ZZ Ceti stars
- NT3 ↓ Neutron stars ►▼
  - NT4 ↓ Magnetars ►▼
    - NT5 ↓ Soft gamma ray repeaters
  - NT4 ↓ Neutron star cores
  - NT4 ↓ Pulsars ►▼
    - NT5 ↓ Binary pulsars ►
    - NT5 ↓ Millisecond pulsars
    - NT5 ↓ Optical pulsars
    - NT5 ↓ Radio pulsars
    - NT5 ↓ Rotation powered pulsars
  - NT4 ↓ Relativistic stars ►▼
    - NT5 ↓ Relativistic binary stars
NT2 ↓ Dwarf stars ►▼
- NT3 ↓ A dwarfs
- NT3 ↓ B dwarfs
- NT3 ↓ Black dwarfs
- NT3 ↓ Blue dwarfs
- NT3 ↓ Brown dwarfs ►▼
  - NT4 ↓ L dwarfs
  - NT4 ↓ L subdwarfs
  - NT4 ↓ T dwarfs
  - NT4 ↓ T subdwarfs
- NT3 ↓ F dwarfs
- NT3 ↓ G dwarfs
- NT3 ↓ Late-type dwarfs ►▼
  - NT4 ↓ K dwarfs
  - NT4 ↓ M dwarfs
- NT3 ↓ O dwarfs
- NT3 ↓ Red dwarfs ►▼
  - NT4 ↓ Red dwarf flare stars
- NT3 ↓ White dwarfs ►▼
  - NT4 ↓ DA stars
  - NT4 ↓ DB stars
  - NT4 ↓ DO stars ►▼
    - NT5 ↓ BL Herculis stars
    - NT5 ↓ PG 1159 stars
  - NT4 ↓ ZZ Ceti stars
- NT3 ↓ Yellow dwarfs ►▼
  - NT4 ↓ The Sun
NT2 ↓ Early-type stars ►▼
- NT3 ↓ A stars ►▼
  - NT4 ↓ A dwarfs
  - NT4 ↓ A giants
  - NT4 ↓ A subdwarfs
  - NT4 ↓ A subgiants
  - NT4 ↓ A supergiants
  - NT4 ↓ Ae stars ►▼
    - NT5 ↓ Herbig Ae/Be stars
  - NT4 ↓ Am stars
  - NT4 ↓ Ap stars ►▼
    - NT5 ↓ Holmium stars
    - NT5 ↓ Manganese stars
    - NT5 ↓ Silicon stars
- NT3 ↓ B stars ►▼
  - NT4 ↓ 53 Persei stars
  - NT4 ↓ B dwarfs
  - NT4 ↓ B giants
  - NT4 ↓ B subdwarfs
  - NT4 ↓ B supergiants
  - NT4 ↓ Be stars ►▼
    - NT5 ↓ Herbig Ae/Be stars
    - NT5 ↓ Lambda Eridani stars
  - NT4 ↓ Bp stars
  - NT4 ↓ BW stars
  - NT4 ↓ Mercury-manganese stars
- NT3 ↓ Early-type emission stars ►▼
  - NT4 ↓ Ae stars ►▼
    - NT5 ↓ Herbig Ae/Be stars
  - NT4 ↓ Be stars ►▼
    - NT5 ↓ Herbig Ae/Be stars
    - NT5 ↓ Lambda Eridani stars
  - NT4 ↓ Oe stars
  - NT4 ↓ Oef stars
  - NT4 ↓ Of stars
  - NT4 ↓ Wolf-Rayet stars ►▼
    - NT5 ↓ WC stars
    - NT5 ↓ WCN stars
    - NT5 ↓ WN stars
- NT3 ↓ Early-type supergiants ►▼
  - NT4 ↓ A supergiants
  - NT4 ↓ B supergiants
  - NT4 ↓ O supergiants
  - NT4 ↓ OB supergiants
- NT3 ↓ Early-type variable stars ►▼
  - NT4 ↓ Beta Cephei stars
  - NT4 ↓ Luminous blue variable stars
  - NT4 ↓ S Doradus stars
  - NT4 ↓ SX Arietis variables
- NT3 ↓ Faint blue stars ►▼
  - NT4 ↓ Blue stragglers
- NT3 ↓ O stars ►▼
  - NT4 ↓ O dwarfs
  - NT4 ↓ O giant stars
  - NT4 ↓ O subdwarfs
  - NT4 ↓ O supergiants
  - NT4 ↓ Oe stars
  - NT4 ↓ Oef stars
  - NT4 ↓ Of stars
- NT3 ↓ OB stars ►▼
  - NT4 ↓ OB supergiants
NT2 ↓ Evolved stars ►▼
- NT3 ↓ Old stars ►▼
  - NT4 ↓ Population II stars ►▼
    - NT5 ↓ Disk population
    - NT5 ↓ Disk stars
    - NT5 ↓ Horizontal branch stars ►
    - NT5 ↓ Population II Cepheid stars ►
    - NT5 ↓ SX Phoenicis variables
  - NT4 ↓ Population III stars
  - NT4 ↓ Pre-galactic stars
- NT3 ↓ Post-main sequence stars ►▼
  - NT4 ↓ Giant stars ►▼
    - NT5 ↓ A giants
    - NT5 ↓ B giants
    - NT5 ↓ CH stars
    - NT5 ↓ CN stars
    - NT5 ↓ Extreme carbon stars
    - NT5 ↓ F giants
    - NT5 ↓ G giants
    - NT5 ↓ Late-type giants ►
    - NT5 ↓ LB variable stars
    - NT5 ↓ O giant stars
    - NT5 ↓ OH/IR stars
    - NT5 ↓ Peculiar giants
    - NT5 ↓ R stars
    - NT5 ↓ Red giants ►
    - NT5 ↓ S stars ►
    - NT5 ↓ Subgiant stars ►
    - NT5 ↓ Supergiant stars ►
    - NT5 ↓ Weak G band stars
  - NT4 ↓ Subgiant stars ►▼
    - NT5 ↓ A subgiants
    - NT5 ↓ F subgiants
    - NT5 ↓ G subgiants
    - NT5 ↓ K subgiants
    - NT5 ↓ M subgiants
  - NT4 ↓ Supergiant stars ►▼
    - NT5 ↓ Early-type supergiants ►
    - NT5 ↓ F supergiants ►
    - NT5 ↓ G supergiants
    - NT5 ↓ Late-type supergiants ►
    - NT5 ↓ Red supergiants
- NT3 ↓ Pulsars ►▼
  - NT4 ↓ Binary pulsars ►▼
    - NT5 ↓ X-ray pulsars
  - NT4 ↓ Millisecond pulsars
  - NT4 ↓ Optical pulsars
  - NT4 ↓ Radio pulsars
  - NT4 ↓ Rotation powered pulsars
- NT3 ↓ White dwarfs ►▼
  - NT4 ↓ DA stars
  - NT4 ↓ DB stars
  - NT4 ↓ DO stars ►▼
    - NT5 ↓ BL Herculis stars
    - NT5 ↓ PG 1159 stars
  - NT4 ↓ ZZ Ceti stars
NT2 ↓ Faint stars ►▼
- NT3 ↓ Faint blue stars ►▼
  - NT4 ↓ Blue stragglers
NT2 ↓ Giant branch stars ►▼
- NT3 ↓ Asymptotic giant branch stars
NT2 ↓ Giant stars ►▼
- NT3 ↓ A giants
- NT3 ↓ B giants
- NT3 ↓ CH stars
- NT3 ↓ CN stars
- NT3 ↓ Extreme carbon stars
- NT3 ↓ F giants
- NT3 ↓ G giants
- NT3 ↓ Late-type giants ►▼
  - NT4 ↓ Heavy metal stars ►▼
    - NT5 ↓ Barium stars ►
    - NT5 ↓ Manganese stars
    - NT5 ↓ S stars ►
    - NT5 ↓ Strontium stars
    - NT5 ↓ Technetium stars
  - NT4 ↓ Irregular variable stars ►▼
    - NT5 ↓ Delta Scuti variable stars
    - NT5 ↓ Gamma Cassiopeiae stars
    - NT5 ↓ LC variable stars
    - NT5 ↓ Mira variable stars
    - NT5 ↓ R Coronae Borealis stars
    - NT5 ↓ RC Aurigae stars
    - NT5 ↓ Soft gamma ray repeaters
    - NT5 ↓ T Tauri stars ►
    - NT5 ↓ UU Herculis stars
  - NT4 ↓ K giants
  - NT4 ↓ M giants ►▼
    - NT5 ↓ Me variable stars
  - NT4 ↓ Mira variable stars
  - NT4 ↓ Semi-regular variable stars ►▼
    - NT5 ↓ S Vulpeculae stars
- NT3 ↓ LB variable stars
- NT3 ↓ O giant stars
- NT3 ↓ OH/IR stars
- NT3 ↓ Peculiar giants
- NT3 ↓ R stars
- NT3 ↓ Red giants ►▼
  - NT4 ↓ Red stragglers
- NT3 ↓ S stars ►▼
  - NT4 ↓ Zirconium stars
- NT3 ↓ Subgiant stars ►▼
  - NT4 ↓ A subgiants
  - NT4 ↓ F subgiants
  - NT4 ↓ G subgiants
  - NT4 ↓ K subgiants
  - NT4 ↓ M subgiants
- NT3 ↓ Supergiant stars ►▼
  - NT4 ↓ Early-type supergiants ►▼
    - NT5 ↓ A supergiants
    - NT5 ↓ B supergiants
    - NT5 ↓ O supergiants
    - NT5 ↓ OB supergiants
  - NT4 ↓ F supergiants ►▼
    - NT5 ↓ UU Herculis stars
  - NT4 ↓ G supergiants
  - NT4 ↓ Late-type supergiants ►▼
    - NT5 ↓ K supergiants
    - NT5 ↓ M supergiants
  - NT4 ↓ Red supergiants
- NT3 ↓ Weak G band stars
NT2 ↓ Helium-rich stars ►▼
- NT3 ↓ DB stars
NT2 ↓ High-luminosity stars ►▼
- NT3 ↓ Bright stars
- NT3 ↓ Luminous blue variable stars
- NT3 ↓ Supergiant stars ►▼
  - NT4 ↓ Early-type supergiants ►▼
    - NT5 ↓ A supergiants
    - NT5 ↓ B supergiants
    - NT5 ↓ O supergiants
    - NT5 ↓ OB supergiants
  - NT4 ↓ F supergiants ►▼
    - NT5 ↓ UU Herculis stars
  - NT4 ↓ G supergiants
  - NT4 ↓ Late-type supergiants ►▼
    - NT5 ↓ K supergiants
    - NT5 ↓ M supergiants
  - NT4 ↓ Red supergiants
- NT3 ↓ Supernovae ►▼
  - NT4 ↓ Core-collapse supernovae ►▼
    - NT5 ↓ Stripped core-collapse supernovae ►
    - NT5 ↓ Type II supernovae
  - NT4 ↓ Hypernovae
  - NT4 ↓ Supernova envelopes
  - NT4 ↓ Type Ia supernovae
NT2 ↓ High-mass stars ►▼
- NT3 ↓ High-mass X-ray binary stars
NT2 ↓ High-velocity stars ►▼
- NT3 ↓ Halo stars
- NT3 ↓ Hypervelocity stars
- NT3 ↓ Runaway stars
NT2 ↓ Hydrogen deficient stars ►▼
- NT3 ↓ AM Canum Venaticorum stars
NT2 ↓ Hypergiant stars ►▼
- NT3 ↓ Yellow hypergiant stars
NT2 ↓ Hypothetical stars ►▼
- NT3 ↓ Black dwarfs
- NT3 ↓ Gravastars
- NT3 ↓ Hypernovae
- NT3 ↓ Population III stars
- NT3 ↓ Preon stars
- NT3 ↓ Quark stars
- NT3 ↓ White holes
NT2 ↓ Intermediate type stars ►▼
- NT3 ↓ F stars ►▼
  - NT4 ↓ F dwarfs
  - NT4 ↓ F giants
  - NT4 ↓ F subdwarfs
  - NT4 ↓ F subgiants
  - NT4 ↓ F supergiants ►▼
    - NT5 ↓ UU Herculis stars
- NT3 ↓ G stars ►▼
  - NT4 ↓ G dwarfs
  - NT4 ↓ G giants
  - NT4 ↓ G subdwarfs
  - NT4 ↓ G subgiants
  - NT4 ↓ G supergiants
NT2 ↓ Late-type stars ►▼
- NT3 ↓ K stars ►▼
  - NT4 ↓ K dwarfs
  - NT4 ↓ K giants
  - NT4 ↓ K subdwarfs
  - NT4 ↓ K subgiants
  - NT4 ↓ K supergiants
- NT3 ↓ Late-type dwarfs ►▼
  - NT4 ↓ K dwarfs
  - NT4 ↓ M dwarfs
- NT3 ↓ Late-type giants ►▼
  - NT4 ↓ Heavy metal stars ►▼
    - NT5 ↓ Barium stars ►
    - NT5 ↓ Manganese stars
    - NT5 ↓ S stars ►
    - NT5 ↓ Strontium stars
    - NT5 ↓ Technetium stars
  - NT4 ↓ Irregular variable stars ►▼
    - NT5 ↓ Delta Scuti variable stars
    - NT5 ↓ Gamma Cassiopeiae stars
    - NT5 ↓ LC variable stars
    - NT5 ↓ Mira variable stars
    - NT5 ↓ R Coronae Borealis stars
    - NT5 ↓ RC Aurigae stars
    - NT5 ↓ Soft gamma ray repeaters
    - NT5 ↓ T Tauri stars ►
    - NT5 ↓ UU Herculis stars
  - NT4 ↓ K giants
  - NT4 ↓ M giants ►▼
    - NT5 ↓ Me variable stars
  - NT4 ↓ Mira variable stars
  - NT4 ↓ Semi-regular variable stars ►▼
    - NT5 ↓ S Vulpeculae stars
- NT3 ↓ Late-type supergiants ►▼
  - NT4 ↓ K supergiants
  - NT4 ↓ M supergiants
- NT3 ↓ M stars ►▼
  - NT4 ↓ M dwarfs
  - NT4 ↓ M giants ►▼
    - NT5 ↓ Me variable stars
  - NT4 ↓ M subdwarfs
  - NT4 ↓ M subgiants
  - NT4 ↓ M supergiants
  - NT4 ↓ Me stars
- NT3 ↓ N stars
- NT3 ↓ R stars
- NT3 ↓ S stars ►▼
  - NT4 ↓ Zirconium stars
NT2 ↓ Low-luminosity stars ►▼
- NT3 ↓ Late-type dwarfs ►▼
  - NT4 ↓ K dwarfs
  - NT4 ↓ M dwarfs
- NT3 ↓ Late-type subdwarfs
NT2 ↓ Low-mass stars ►▼
- NT3 ↓ Hz Herculis stars
NT2 ↓ Main sequence stars ►▼
- NT3 ↓ Blue stragglers
- NT3 ↓ Yellow dwarfs ►▼
  - NT4 ↓ The Sun
- NT3 ↓ Yellow stragglers
- NT3 ↓ Zero-age main sequence stars
NT2 ↓ Massive stars ►▼
- NT3 ↓ Supermassive black holes
- NT3 ↓ Supermassive stars
NT2 ↓ Metal-poor stars ►▼
- NT3 ↓ Lithium-poor stars
- NT3 ↓ Population II stars ►▼
  - NT4 ↓ Disk population
  - NT4 ↓ Disk stars
  - NT4 ↓ Horizontal branch stars ►▼
    - NT5 ↓ Extreme horizontal branch stars
    - NT5 ↓ Zero-age horizontal branch stars
  - NT4 ↓ Population II Cepheid stars ►▼
    - NT5 ↓ RR Lyrae variable stars ►
  - NT4 ↓ SX Phoenicis variables
- NT3 ↓ Weak G band stars
NT2 ↓ Multiple stars ►▼
- NT3 ↓ Binary stars ►▼
  - NT4 ↓ Accreting binaries
  - NT4 ↓ Algol variable stars
  - NT4 ↓ Astrometric binary stars
  - NT4 ↓ Bursters
  - NT4 ↓ Close binary stars ►▼
    - NT5 ↓ Ellipsoidal variable stars ►
    - NT5 ↓ Semi-detached binary stars
    - NT5 ↓ Z Andromedae stars
  - NT4 ↓ Companion stars ►▼
    - NT5 ↓ Substellar companions
    - NT5 ↓ Tertiary stars
  - NT4 ↓ Contact binary stars
  - NT4 ↓ Detached binary stars ►▼
    - NT5 ↓ W Ursae Majoris variable stars
  - NT4 ↓ Eclipsing binary stars ►▼
    - NT5 ↓ Algol variable stars
    - NT5 ↓ Beta Lyrae stars
    - NT5 ↓ DQ Herculis stars
    - NT5 ↓ R Canis Majoris stars
    - NT5 ↓ Upsilon Sagittarii stars
    - NT5 ↓ W Ursae Majoris variable stars
  - NT4 ↓ Eruptive binary stars ►▼
    - NT5 ↓ Alpha2 Canum Venaticorum stars
    - NT5 ↓ Dwarf novae ►
    - NT5 ↓ Symbiotic binary stars ►
    - NT5 ↓ X-ray binary stars ►
  - NT4 ↓ Interacting binary stars ►▼
    - NT5 ↓ Cataclysmic variable stars ►
    - NT5 ↓ X-ray binary stars ►
  - NT4 ↓ Interferometric binary stars
  - NT4 ↓ Primary stars
  - NT4 ↓ Relativistic binary stars
  - NT4 ↓ Semi-detached binary stars
  - NT4 ↓ Spectroscopic binary stars ►▼
    - NT5 ↓ Two-spectrum binary stars
  - NT4 ↓ Visual binary stars
  - NT4 ↓ Wide binary stars ►▼
    - NT5 ↓ Visual binary stars
- NT3 ↓ Trinary stars
NT2 ↓ Novae ►▼
- NT3 ↓ Classical novae
- NT3 ↓ Dwarf novae ►▼
  - NT4 ↓ SU Ursae Majoris stars
  - NT4 ↓ SX Arietis variables
  - NT4 ↓ U Geminorum stars
  - NT4 ↓ WZ Sagittae stars
  - NT4 ↓ Z Camelopardalis stars
- NT3 ↓ Fast novae
- NT3 ↓ Recurrent novae
- NT3 ↓ Slow novae ►▼
  - NT4 ↓ DQ Herculis stars
- NT3 ↓ Supernovae ►▼
  - NT4 ↓ Core-collapse supernovae ►▼
    - NT5 ↓ Stripped core-collapse supernovae ►
    - NT5 ↓ Type II supernovae
  - NT4 ↓ Hypernovae
  - NT4 ↓ Supernova envelopes
  - NT4 ↓ Type Ia supernovae
- NT3 ↓ Symbiotic novae
- NT3 ↓ X-ray novae
NT2 ↓ Peculiar stars ►▼
- NT3 ↓ Bp stars
- NT3 ↓ Carbon stars ►▼
  - NT4 ↓ N stars
  - NT4 ↓ R stars
- NT3 ↓ Chemically peculiar stars ►▼
  - NT4 ↓ Am stars
  - NT4 ↓ Ap stars ►▼
    - NT5 ↓ Holmium stars
    - NT5 ↓ Manganese stars
    - NT5 ↓ Silicon stars
  - NT4 ↓ Helium weak stars
  - NT4 ↓ Helium-poor stars ►▼
    - NT5 ↓ BW stars
  - NT4 ↓ Lithium stars
  - NT4 ↓ Manganese stars
  - NT4 ↓ Mercury-manganese stars
  - NT4 ↓ Metal-rich stars ►▼
    - NT5 ↓ Am stars
    - NT5 ↓ Ap stars ►
    - NT5 ↓ Population I stars ►
  - NT4 ↓ Strontium stars
  - NT4 ↓ Technetium stars
  - NT4 ↓ Zirconium stars
- NT3 ↓ Heavy metal stars ►▼
  - NT4 ↓ Barium stars ►▼
    - NT5 ↓ Semi-barium stars
  - NT4 ↓ Manganese stars
  - NT4 ↓ S stars ►▼
    - NT5 ↓ Zirconium stars
  - NT4 ↓ Strontium stars
  - NT4 ↓ Technetium stars
- NT3 ↓ Magnetic stars ►▼
  - NT4 ↓ Am stars
  - NT4 ↓ Bp stars
  - NT4 ↓ Magnetars ►▼
    - NT5 ↓ Soft gamma ray repeaters
  - NT4 ↓ Magnetic variable stars ►▼
    - NT5 ↓ Alpha2 Canum Venaticorum stars
    - NT5 ↓ Am stars
    - NT5 ↓ SX Arietis variables
  - NT4 ↓ Mercury-manganese stars
- NT3 ↓ Peculiar giants
- NT3 ↓ Peculiar variable stars
NT2 ↓ Red stars ►▼
- NT3 ↓ Red dwarfs ►▼
  - NT4 ↓ Red dwarf flare stars
- NT3 ↓ Red giants ►▼
  - NT4 ↓ Red stragglers
- NT3 ↓ Red supergiants
NT2 ↓ Shell stars ►▼
- NT3 ↓ Gamma Cassiopeiae stars
- NT3 ↓ S Doradus stars
- NT3 ↓ Z Andromedae stars
NT2 ↓ Standard stars ►▼
- NT3 ↓ Comparison stars
- NT3 ↓ Photometric standard stars
NT2 ↓ Stellar populations ►▼
- NT3 ↓ Intermediate population stars
- NT3 ↓ Orion population stars
- NT3 ↓ Population I stars ►▼
  - NT4 ↓ Extreme population I stars
- NT3 ↓ Population II stars ►▼
  - NT4 ↓ Disk population
  - NT4 ↓ Disk stars
  - NT4 ↓ Horizontal branch stars ►▼
    - NT5 ↓ Extreme horizontal branch stars
    - NT5 ↓ Zero-age horizontal branch stars
  - NT4 ↓ Population II Cepheid stars ►▼
    - NT5 ↓ RR Lyrae variable stars ►
  - NT4 ↓ SX Phoenicis variables
- NT3 ↓ Population III stars
NT2 ↓ Stellar remnants ►▼
- NT3 ↓ Black holes ►▼
  - NT4 ↓ Charged black holes ►▼
    - NT5 ↓ Kerr-Newman black holes
    - NT5 ↓ Reissner–Nordström black holes
  - NT4 ↓ Classical black holes
  - NT4 ↓ Event horizons
  - NT4 ↓ Nonrotating black holes ►▼
    - NT5 ↓ Reissner–Nordström black holes
    - NT5 ↓ Schwarzschild black holes
  - NT4 ↓ Primordial black holes
  - NT4 ↓ Rotating black holes ►▼
    - NT5 ↓ Kerr black holes
    - NT5 ↓ Kerr-Newman black holes
  - NT4 ↓ Stellar mass black holes
  - NT4 ↓ Supermassive black holes
  - NT4 ↓ Uncharged black holes ►▼
    - NT5 ↓ Kerr black holes
    - NT5 ↓ Schwarzschild black holes
- NT3 ↓ Degenerate matter
- NT3 ↓ Ejecta
- NT3 ↓ Neutron stars ►▼
  - NT4 ↓ Magnetars ►▼
    - NT5 ↓ Soft gamma ray repeaters
  - NT4 ↓ Neutron star cores
  - NT4 ↓ Pulsars ►▼
    - NT5 ↓ Binary pulsars ►
    - NT5 ↓ Millisecond pulsars
    - NT5 ↓ Optical pulsars
    - NT5 ↓ Radio pulsars
    - NT5 ↓ Rotation powered pulsars
  - NT4 ↓ Relativistic stars ►▼
    - NT5 ↓ Relativistic binary stars
- NT3 ↓ Pulsars ►▼
  - NT4 ↓ Binary pulsars ►▼
    - NT5 ↓ X-ray pulsars
  - NT4 ↓ Millisecond pulsars
  - NT4 ↓ Optical pulsars
  - NT4 ↓ Radio pulsars
  - NT4 ↓ Rotation powered pulsars
- NT3 ↓ Supernovae ►▼
  - NT4 ↓ Core-collapse supernovae ►▼
    - NT5 ↓ Stripped core-collapse supernovae ►
    - NT5 ↓ Type II supernovae
  - NT4 ↓ Hypernovae
  - NT4 ↓ Supernova envelopes
  - NT4 ↓ Type Ia supernovae
NT2 ↓ Subluminous stars ►▼
- NT3 ↓ Degenerate stars ►▼
  - NT4 ↓ Degenerate dwarfs ►▼
    - NT5 ↓ White dwarfs ►
  - NT4 ↓ Neutron stars ►▼
    - NT5 ↓ Magnetars ►
    - NT5 ↓ Neutron star cores
    - NT5 ↓ Pulsars ►
    - NT5 ↓ Relativistic stars ►
- NT3 ↓ Subdwarfs ►▼
  - NT4 ↓ A subdwarfs
  - NT4 ↓ B subdwarfs
  - NT4 ↓ F subdwarfs
  - NT4 ↓ G subdwarfs
  - NT4 ↓ K subdwarfs
  - NT4 ↓ L subdwarfs
  - NT4 ↓ Late-type subdwarfs
  - NT4 ↓ M subdwarfs
  - NT4 ↓ O subdwarfs
  - NT4 ↓ T subdwarfs
NT2 ↓ Ultraviolet excess stars ►▼
- NT3 ↓ RC Aurigae stars
NT2 ↓ Variable stars ►▼
- NT3 ↓ Cataclysmic variable stars ►▼
  - NT4 ↓ AM Herculis stars
  - NT4 ↓ Nova-like variable stars ►▼
    - NT5 ↓ AM Canum Venaticorum stars
    - NT5 ↓ UX Ursae Majoris stars
    - NT5 ↓ VY Sculpturis
  - NT4 ↓ Novae ►▼
    - NT5 ↓ Classical novae
    - NT5 ↓ Dwarf novae ►
    - NT5 ↓ Fast novae
    - NT5 ↓ Recurrent novae
    - NT5 ↓ Slow novae ►
    - NT5 ↓ Supernovae ►
    - NT5 ↓ Symbiotic novae
    - NT5 ↓ X-ray novae
  - NT4 ↓ SX Arietis variables
  - NT4 ↓ Symbiotic novae
  - NT4 ↓ UV Persei stars
- NT3 ↓ Eclipsing binary stars ►▼
  - NT4 ↓ Algol variable stars
  - NT4 ↓ Beta Lyrae stars
  - NT4 ↓ DQ Herculis stars
  - NT4 ↓ R Canis Majoris stars
  - NT4 ↓ Upsilon Sagittarii stars
  - NT4 ↓ W Ursae Majoris variable stars
- NT3 ↓ Ellipsoidal variable stars ►▼
  - NT4 ↓ Beta Lyrae stars
- NT3 ↓ Emission line stars ►▼
  - NT4 ↓ Be type stars
  - NT4 ↓ Early-type emission stars ►▼
    - NT5 ↓ Ae stars ►
    - NT5 ↓ Be stars ►
    - NT5 ↓ Oe stars
    - NT5 ↓ Oef stars
    - NT5 ↓ Of stars
    - NT5 ↓ Wolf-Rayet stars ►
  - NT4 ↓ Flash stars
  - NT4 ↓ Gamma Cassiopeiae stars
  - NT4 ↓ H-alpha stars
  - NT4 ↓ Luminous blue variables
  - NT4 ↓ Me stars
  - NT4 ↓ Me variable stars
  - NT4 ↓ Mira variable stars
  - NT4 ↓ RC Aurigae stars
  - NT4 ↓ S Doradus stars
  - NT4 ↓ Symbiotic binary stars ►▼
    - NT5 ↓ RR Telescopii stars
    - NT5 ↓ Symbiotic novae
    - NT5 ↓ Z Andromedae stars
  - NT4 ↓ T Tauri stars ►▼
    - NT5 ↓ Classical T Tauri stars
    - NT5 ↓ FU Orionis stars
    - NT5 ↓ Weak-line T Tauri stars
  - NT4 ↓ X-ray stars ►▼
    - NT5 ↓ Single X-ray stars
  - NT4 ↓ Z Andromedae stars
- NT3 ↓ Eruptive variables
- NT3 ↓ Flare stars ►▼
  - NT4 ↓ BY Draconis stars
  - NT4 ↓ FU Orionis
  - NT4 ↓ R Coronae Borealis variables
  - NT4 ↓ Red dwarf flare stars
  - NT4 ↓ RS Canum Venaticorum variables
  - NT4 ↓ UV Ceti stars
- NT3 ↓ Hubble-Sandage variable stars
- NT3 ↓ Intrinsic variable stars ►▼
  - NT4 ↓ Herbig-Haro objects
  - NT4 ↓ Magnetic variable stars ►▼
    - NT5 ↓ Alpha2 Canum Venaticorum stars
    - NT5 ↓ Am stars
    - NT5 ↓ SX Arietis variables
  - NT4 ↓ Pulsating variable stars ►▼
    - NT5 ↓ 53 Persei stars
    - NT5 ↓ Beta Cephei stars
    - NT5 ↓ Cepheids ►
    - NT5 ↓ Delta Delphini stars
    - NT5 ↓ Delta Scuti variable stars
    - NT5 ↓ Double-mode variable stars ►
    - NT5 ↓ Irregular variable stars ►
    - NT5 ↓ Lambda Eridani stars
    - NT5 ↓ Long period variable stars ►
    - NT5 ↓ Mira variable stars
    - NT5 ↓ Multi-periodic variable stars ►
    - NT5 ↓ RV Tauri variables
    - NT5 ↓ S Vulpeculae stars
    - NT5 ↓ Semi-regular variable stars ►
  - NT4 ↓ Spectrum variable stars ►▼
    - NT5 ↓ Manganese stars
- NT3 ↓ Late-type variable stars ►▼
  - NT4 ↓ Me variable stars
- NT3 ↓ LB variable stars
- NT3 ↓ Long period variables ►▼
  - NT4 ↓ Mira variables
  - NT4 ↓ Semiregular variables
  - NT4 ↓ Slow irregular variables
- NT3 ↓ Low amplitude blue variables ►▼
  - NT4 ↓ Alpha Cygni variables
  - NT4 ↓ Beta Cephei variables
  - NT4 ↓ Delta Canis Majoris
  - NT4 ↓ SX Phoenicis variables
- NT3 ↓ Peculiar variable stars
- NT3 ↓ Periodic variable stars ►▼
  - NT4 ↓ Long period variable stars ►▼
    - NT5 ↓ Mira variable stars
    - NT5 ↓ S Vulpeculae stars
    - NT5 ↓ WZ Sagittae stars
  - NT4 ↓ Multi-periodic variable stars ►▼
    - NT5 ↓ Beta Cephei stars
    - NT5 ↓ Delta Scuti variable stars
    - NT5 ↓ Double-mode variable stars ►
    - NT5 ↓ PG 1159 stars
    - NT5 ↓ SX Phoenicis variables
    - NT5 ↓ ZZ Ceti stars
  - NT4 ↓ Semi-regular variable stars ►▼
    - NT5 ↓ S Vulpeculae stars
  - NT4 ↓ Short period variable stars ►▼
    - NT5 ↓ Beta Cephei stars
    - NT5 ↓ Delta Scuti variable stars
- NT3 ↓ PV Telescopii variables
NT2 ↓ Young stellar objects ►▼
- NT3 ↓ Pre-main sequence stars ►▼
  - NT4 ↓ Herbig Ae/Be stars
  - NT4 ↓ RC Aurigae stars
  - NT4 ↓ T Tauri stars ►▼
    - NT5 ↓ Classical T Tauri stars
    - NT5 ↓ FU Orionis stars
    - NT5 ↓ Weak-line T Tauri stars
- NT3 ↓ Protostars ►▼
  - NT4 ↓ Bok globules
  - NT4 ↓ Cometary nebulae
  - NT4 ↓ Herbig-Haro objects

Date of creation

18-Dec-2013

Accepted term

18-Dec-2013

Descendant terms

237

ARK

ark:/99152/t35nz0xed7lw3g

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