IVOAT Thesaurus
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H
:
189
terms
H
USE
hydrogen
H alpha
H alpha emission line star
H alpha photometry
H and K line
H beta
H beta photometry
H delta
H epsilon
H gamma
H I
H I absorption
H I cloud
H I content
H I emission
H I region
H II
H II region
H line
H magnitude
H minus ion
USE
negative H ion
H S variable star
USE
Hubble Sandage variable star
H-
USE
negative H ion
H- ion
USE
negative H ion
H-S variable star
USE
Hubble Sandage variable star
H.J.D.
USE
heliocentric Julian Date
HA
USE
hour angle
hadron
hadron barrier
hafnium
halation
half wave dipole
USE
half-wave dipole
half wave plate
USE
half-wave plate
half-wave dipole
half-wave plate
halfwave dipole
USE
half-wave dipole
halfwave plate
USE
half-wave plate
halo
halo star
Hanle effect
Harman Seaton sequence
USE
Harman-Seaton sequence
Harman-Seaton sequence
harmonic analysis
USE
Fourier analysis
harmonic frequency
harmonic overtones
USE
overtone frequency
harmonic overtones
USE
harmonic frequency
harmonics
USE
harmonic frequency
Haro galaxy
Hartmann test
Harvard classification
USE
Henry Draper system
hassium
Hawking radiation
Hayashi track
HCG
USE
Hickson compact group
HD curve
HD system
USE
Henry Draper system
He
USE
helium
He I
He II
He II ionization zone
He III
He+ ionisation zone UK
USE
He II ionization zone
He+ ionization zone
USE
He II ionization zone
head tail galaxy
heat-transfer
heavy element
heavy metal star
height
heliocentric correction
heliocentric Julian Date
heliocentric orbit
heliocentric parallax
USE
annual parallax
heliocentric velocity
heliograph
heliometer
heliopause
helioseismology
heliosphere
heliostat
helium
helium burning
helium detonation
USE
helium flash
helium flash
helium poor star
USE
helium-poor star
helium rich star
USE
helium-rich star
helium shell flash
helium variable star
USE
SX Arietis star
helium-poor star
helium-rich star
Helmholtz Kelvin contraction
USE
Helmholtz-Kelvin contraction
Helmholtz-Kelvin contraction
Henry Draper catalog
Henry Draper system
Henyey track
Herbig Ae-Be star
USE
Herbig AeBe star
Herbig AeBe star
Herbig star
USE
Herbig AeBe star
Herbig-Haro object
Hertzsprung gap
Hertzsprung Russell diagram
USE
Hertzsprung-Russell diagram
Hertzsprung-Russell diagram
Hess diagram
heterodyne
Hf
USE
hafnium
Hg
USE
mercury
HH-object
USE
Herbig-Haro object
Hickson compact group
hierarchical cosmology
high dispersion spectroscopy
USE
high-resolution spectrosopy
high dispersion spectrum
USE
high-resolution spectrum
high energy astrophysics
USE
high-energy astrophysics
high energy process
USE
high-energy astrophysics
high energy radiation
USE
high-energy radiation
high luminosity star
USE
high-luminosity star
high resolution spectrosopy
USE
high-resolution spectrosopy
high resolution spectrum
USE
high-resolution spectrum
high speed photometer
USE
high-speed photometer
high temperature
USE
high-temperature
high velocity cloud
USE
high-velocity cloud
high velocity star
USE
high-velocity star
high-dispersion spectroscopy
USE
high-resolution spectrosopy
high-dispersion spectrum
USE
high-resolution spectrum
high-energy astrophysics
high-energy process
USE
high-energy astrophysics
high-energy radiation
high-luminosity star
high-mass star
high-mass X-ray binary star
high-resolution spectrosopy
high-resolution spectrum
high-speed photometer
high-state
high-temperature
high-velocity cloud
high-velocity star
HII region
USE
H II region
Hirayama family
history of astronomy
HJD
USE
heliocentric Julian Date
Ho
USE
holmium
Holmberg radius
holmium
holmium star
Holtsmark approximation
horizon
horizon coordinate system
horizontal branch star
horizontal parallax
horn antenna
horn antennas
USE
horn antenna
horseshoe mounting
hot
USE
high-temperature
hot star
USE
early-type star
hour angle
HR diagram
USE
Hertzsprung-Russell diagram
Hs
USE
hassium
HST
USE
Hubble Space Telescope
HST Fnnn[LMNW] photometry
USE
HST photometry
HST photometry
Hubble classification
Hubble constant
Hubble diagram
Hubble law
Hubble photometry
USE
HST photometry
Hubble radius
Hubble Sandage variable star
Hubble sequence
USE
Hubble classification
Hubble Space Telescope
Hubble time
HVC
USE
high-velocity cloud
hydrated carbon
hydrocarbon
hydrodynamics
hydrogen
hydrogen burning
hydrogen deficient star
hydrogen line
hydrogen spectrum
hydromagnetic wave
USE
Alfven wave
hydromagnetics
USE
magnetohydrodynamics
hydrostatic equilibrium
hydroxyl radical
hyperbolic orbit
hyperfine line
hypergalaxy
hypergiant
hypernova
hypothetical planet
HZ Herculis star