Unified Astronomy Thesaurus
Toggle navigation
Home
Advanced search
About...
My account
0-9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Γ
Κ
Home
H
:
188
terms
H alpha photometry
H beta photometry
H I I clouds
USE
H II regions
H I I regions
USE
H II regions
H I lines
USE
HI line
H I regions
H I shells
USE
HI shells
H II clouds
USE
H II regions
H II regions
H magnitude
H-alpha stars
H-R diagrams
USE
Hertzsprung Russell diagrams
H-S variable stars
USE
Hubble-Sandage variable stars
H2 clouds
H2O masers
USE
Water masers
Hadron barrier
Hadron epoch
USE
Hadron barrier
HAeBe stars
USE
Herbig Ae/Be stars
Hall current thrusters
USE
Hall thrusters
Hall effect thrusters
USE
Hall thrusters
Hall thrusters
Halo of the Milky Way
USE
Milky Way galactic halo
Halo stars
Harman seaton sequence
USE
Harman-Seaton sequence
Harman-Seaton sequence
Haro galaxies
Harvard classification
USE
Henry Draper Catalogue
Haumea
Hawking radiation
Hayashi track
HB stars
USE
Horizontal branch stars
HCG
USE
Hickson compact group
HD catalog
USE
Henry Draper catalog
HD system
USE
Henry Draper Catalogue
HDM
USE
Hot dark matter
He-weak stars
USE
Helium weak stars
Head tail galaxies
USE
Head-tail galaxies
Head-tail galaxies
Heavy metal stars
Heavy-metal stars
USE
Heavy metal stars
Heliocentric correction
Heliocentric orbit
Heliocentric parallax
USE
Annual parallax
Heliopause
Helioseismic pulsations
Helioseismology
Heliosheath
Heliosphere
Heliosphere interstellar medium interactions
Heliosphere-interstellar medium interactions
USE
Heliosphere interstellar medium interactions
Heliosphere/interstellar medium interactions
USE
Heliosphere interstellar medium interactions
Heliostats
Helium burning
Helium detonation
USE
Helium flashes
Helium flashes
Helium poor stars
USE
Helium-poor stars
Helium rich stars
USE
Helium-rich stars
Helium shell flashes
Helium variable stars
USE
SX Arietis variables
Helium weak stars
Helium-poor stars
Helium-rich stars
Helium-weak stars
USE
Helium-poor stars
Helmholtz Kelvin contraction
USE
Helmholtz-Kelvin contraction
Helmholtz-Kelvin contraction
Helmholtz-Kelvin mechanism
USE
Helmholtz-Kelvin contraction
Henry Draper catalog
Henry Draper Catalogue
Henry Draper system
USE
Henry Draper Catalogue
Henyey track
Herbig Ae-Be stars
USE
Herbig Ae/Be stars
Herbig Ae/Be stars
Herbig Haro objects
USE
Herbig-Haro objects
Herbig stars
USE
Herbig Ae/Be stars
Herbig-Haro objects
Herbig–Haro object
USE
Herbig-Haro objects
Hertzsprung gap
Hertzsprung Russell diagrams
Hertzsprung-Russell diagram
USE
Hertzsprung Russell diagrams
Hertzsprung-Russell diagrams
USE
Hertzsprung Russell diagrams
Hertzsprung/Russell diagrams
USE
Hertzsprung Russell diagrams
Hertzsprung–Russell diagram
USE
Hertzsprung Russell diagrams
Hess diagram
Heterodyne interferometry
Heterodyne receivers
Heterotic strings
HH objects
USE
Herbig-Haro objects
HH-object
USE
Herbig-Haro objects
HI clouds
USE
Neutral hydrogen clouds
HI gas
USE
Neutral hydrogen gas
HI line
HI regions
USE
H I regions
HI shells
Hickson compact group
Hierarchical cosmology
High altitude balloons
High angular resolution
High energy astronomy
High energy astrophysics
USE
High energy astronomy
High energy cosmic radiation
USE
High-energy cosmic radiation
High energy cosmic rays
USE
High-energy cosmic radiation
High energy process
USE
High energy astronomy
High luminosity stars
USE
High-luminosity stars
High mass stars
USE
High-mass stars
High radiation state
High time resolution astrophysics
High velocity clouds
USE
High-velocity clouds
High velocity stars
USE
High-velocity stars
High-altitude balloons
USE
High altitude balloons
High-energy astronomy
USE
High energy astronomy
High-energy astrophysics
USE
High energy astronomy
High-energy cosmic radiation
High-energy cosmic rays
USE
High-energy cosmic radiation
High-energy process
USE
High energy astronomy
High-luminosity stars
High-mass stars
High-mass X-ray binaries
USE
High-mass X-ray binary stars
High-mass X-ray binary stars
High-redshift galaxies
High-velocity clouds
High-velocity stars
Highly ionised interstellar gas
USE
Ionized interstellar gas
Highly ionized interstellar gas
USE
Ionized interstellar gas
HII clouds
USE
H II regions
HII regions
USE
H II regions
Hirayama families
HMXBs
USE
High-mass X-ray binary stars
Holmberg radius
Holmium stars
Holographic interferometry
Horizon (horizon coordinate system)
USE
Horizon coordinate system
Horizon coordinate system
Horizontal branch
USE
Horizontal branch stars
Horizontal branch stars
Horizontal coordinate system
USE
Horizon coordinate system
Horizontal parallax
Horizontal-branch
USE
Horizontal branch stars
Horseshoe mounts
Hot dark matter
Hot interstellar gas
Hot interstellar gases
USE
Hot interstellar gas
Hot Jupiters
Hot Neptunes
Hour angle
HR diagram
USE
Hertzsprung Russell diagrams
HRD
USE
Hertzsprung Russell diagrams
HS variable stars
USE
Hubble-Sandage variable stars
HST
USE
Hubble Space Telescope
HST Fnnn[LMNW] photometry
USE
HST photometry
HST photometry
HTRA
USE
High time resolution astrophysics
Hubble classification
USE
Hubble classification scheme
Hubble classification scheme
Hubble constant
Hubble diagram
Hubble galaxy classification
USE
Hubble classification scheme
Hubble law
USE
Hubble's law
Hubble photometry
USE
HST photometry
Hubble radius
Hubble sequence
USE
Hubble classification scheme
Hubble Space Telescope
Hubble time
Hubble's classification
USE
Hubble classification scheme
Hubble's law
Hubble-Sandage variable stars
Hubble-Sandage variables
USE
Hubble-Sandage variable stars
Humidity
Huya
HVC
USE
High-velocity clouds
Hydrodynamical simulations
Hydrogen burning
Hydrogen clouds
USE
H2 clouds
Hydrogen deficient stars
Hydrogen lines
USE
HI line
Hydrosphere
Hydroxyl masers
Hydroxyl radical clouds
Hydroxyl sources
Hyperbolic orbit
Hypergalaxies
Hypergiant stars
Hypernova
USE
Hypernovae
Hypernovae
Hypervelocity stars
Hypothetical planets
Hypothetical stars
Hz Herculis stars
H₂ clouds
USE
H2 clouds