Unified Astronomy Thesaurus

  1. H alpha photometry
  2. H beta photometry
  3. H I I clouds USE H II regions
  4. H I I regions USE H II regions
  5. H I lines USE HI line
  6. H I regions
  7. H I shells USE HI shells
  8. H II clouds USE H II regions
  9. H II regions
  10. H magnitude
  11. H-alpha stars
  12. H-R diagrams USE Hertzsprung Russell diagrams
  13. H-S variable stars USE Hubble-Sandage variable stars
  14. H2 clouds
  15. H2O masers USE Water masers
  16. Hadron barrier
  17. Hadron epoch USE Hadron barrier
  18. HAeBe stars USE Herbig Ae/Be stars
  19. Hall current thrusters USE Hall thrusters
  20. Hall effect thrusters USE Hall thrusters
  21. Hall thrusters
  22. Halo of the Milky Way USE Milky Way galactic halo
  23. Halo stars
  24. Harman seaton sequence USE Harman-Seaton sequence
  25. Harman-Seaton sequence
  26. Haro galaxies
  27. Harvard classification USE Henry Draper Catalogue
  28. Haumea
  29. Hawking radiation
  30. Hayashi track
  31. HB stars USE Horizontal branch stars
  32. HCG USE Hickson compact group
  33. HD catalog USE Henry Draper catalog
  34. HD system USE Henry Draper Catalogue
  35. HDM USE Hot dark matter
  36. He-weak stars USE Helium weak stars
  37. Head tail galaxies USE Head-tail galaxies
  38. Head-tail galaxies
  39. Heavy metal stars
  40. Heavy-metal stars USE Heavy metal stars
  41. Heliocentric correction
  42. Heliocentric orbit
  43. Heliocentric parallax USE Annual parallax
  44. Heliopause
  45. Helioseismic pulsations
  46. Helioseismology
  47. Heliosheath
  48. Heliosphere
  49. Heliosphere interstellar medium interactions
  50. Heliosphere-interstellar medium interactions USE Heliosphere interstellar medium interactions
  51. Heliosphere/interstellar medium interactions USE Heliosphere interstellar medium interactions
  52. Heliostats
  53. Helium burning
  54. Helium detonation USE Helium flashes
  55. Helium flashes
  56. Helium poor stars USE Helium-poor stars
  57. Helium rich stars USE Helium-rich stars
  58. Helium shell flashes
  59. Helium variable stars USE SX Arietis variables
  60. Helium weak stars
  61. Helium-poor stars
  62. Helium-rich stars
  63. Helium-weak stars USE Helium-poor stars
  64. Helmholtz Kelvin contraction USE Helmholtz-Kelvin contraction
  65. Helmholtz-Kelvin contraction
  66. Helmholtz-Kelvin mechanism USE Helmholtz-Kelvin contraction
  67. Henry Draper catalog
  68. Henry Draper Catalogue
  69. Henry Draper system USE Henry Draper Catalogue
  70. Henyey track
  71. Herbig Ae-Be stars USE Herbig Ae/Be stars
  72. Herbig Ae/Be stars
  73. Herbig Haro objects USE Herbig-Haro objects
  74. Herbig stars USE Herbig Ae/Be stars
  75. Herbig-Haro objects
  76. Herbig–Haro object USE Herbig-Haro objects
  77. Hertzsprung gap
  78. Hertzsprung Russell diagrams
  79. Hertzsprung-Russell diagram USE Hertzsprung Russell diagrams
  80. Hertzsprung-Russell diagrams USE Hertzsprung Russell diagrams
  81. Hertzsprung/Russell diagrams USE Hertzsprung Russell diagrams
  82. Hertzsprung–Russell diagram USE Hertzsprung Russell diagrams
  83. Hess diagram
  84. Heterodyne interferometry
  85. Heterodyne receivers
  86. Heterotic strings
  87. HH objects USE Herbig-Haro objects
  88. HH-object USE Herbig-Haro objects
  89. HI clouds USE Neutral hydrogen clouds
  90. HI gas USE Neutral hydrogen gas
  91. HI line
  92. HI regions USE H I regions
  93. HI shells
  94. Hickson compact group
  95. Hierarchical cosmology
  96. High altitude balloons
  97. High angular resolution
  98. High energy astronomy
  99. High energy astrophysics USE High energy astronomy
  100. High energy cosmic radiation USE High-energy cosmic radiation
  101. High energy cosmic rays USE High-energy cosmic radiation
  102. High energy process USE High energy astronomy
  103. High luminosity stars USE High-luminosity stars
  104. High mass stars USE High-mass stars
  105. High radiation state
  106. High time resolution astrophysics
  107. High velocity clouds USE High-velocity clouds
  108. High velocity stars USE High-velocity stars
  109. High-altitude balloons USE High altitude balloons
  110. High-energy astronomy USE High energy astronomy
  111. High-energy astrophysics USE High energy astronomy
  112. High-energy cosmic radiation
  113. High-energy cosmic rays USE High-energy cosmic radiation
  114. High-energy process USE High energy astronomy
  115. High-luminosity stars
  116. High-mass stars
  117. High-mass X-ray binaries USE High-mass X-ray binary stars
  118. High-mass X-ray binary stars
  119. High-redshift galaxies
  120. High-velocity clouds
  121. High-velocity stars
  122. Highly ionised interstellar gas USE Ionized interstellar gas
  123. Highly ionized interstellar gas USE Ionized interstellar gas
  124. HII clouds USE H II regions
  125. HII regions USE H II regions
  126. Hirayama families
  127. HMXBs USE High-mass X-ray binary stars
  128. Holmberg radius
  129. Holmium stars
  130. Holographic interferometry
  131. Horizon (horizon coordinate system) USE Horizon coordinate system
  132. Horizon coordinate system
  133. Horizontal branch USE Horizontal branch stars
  134. Horizontal branch stars
  135. Horizontal coordinate system USE Horizon coordinate system
  136. Horizontal parallax
  137. Horizontal-branch USE Horizontal branch stars
  138. Horseshoe mounts
  139. Hot dark matter
  140. Hot interstellar gas
  141. Hot interstellar gases USE Hot interstellar gas
  142. Hot Jupiters
  143. Hot Neptunes
  144. Hour angle
  145. HR diagram USE Hertzsprung Russell diagrams
  146. HRD USE Hertzsprung Russell diagrams
  147. HS variable stars USE Hubble-Sandage variable stars
  148. HST USE Hubble Space Telescope
  149. HST Fnnn[LMNW] photometry USE HST photometry
  150. HST photometry
  151. HTRA USE High time resolution astrophysics
  152. Hubble classification USE Hubble classification scheme
  153. Hubble classification scheme
  154. Hubble constant
  155. Hubble diagram
  156. Hubble galaxy classification USE Hubble classification scheme
  157. Hubble law USE Hubble's law
  158. Hubble photometry USE HST photometry
  159. Hubble radius
  160. Hubble sequence USE Hubble classification scheme
  161. Hubble Space Telescope
  162. Hubble time
  163. Hubble's classification USE Hubble classification scheme
  164. Hubble's law
  165. Hubble-Sandage variable stars
  166. Hubble-Sandage variables USE Hubble-Sandage variable stars
  167. Humidity
  168. Huya
  169. HVC USE High-velocity clouds
  170. Hydrodynamical simulations
  171. Hydrogen burning
  172. Hydrogen clouds USE H2 clouds
  173. Hydrogen deficient stars
  174. Hydrogen lines USE HI line
  175. Hydrosphere
  176. Hydroxyl masers
  177. Hydroxyl radical clouds
  178. Hydroxyl sources
  179. Hyperbolic orbit
  180. Hypergalaxies
  181. Hypergiant stars
  182. Hypernova USE Hypernovae
  183. Hypernovae
  184. Hypervelocity stars
  185. Hypothetical planets
  186. Hypothetical stars
  187. Hz Herculis stars
  188. H₂ clouds USE H2 clouds