Unified Astronomy Thesaurus

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  2. U: 49 terms
  1. U Geminorum stars
  2. U Geminorum-type variable stars USE Dwarf novae
  3. U magnitude
  4. UBV photometry USE Johnson photometry
  5. UBV RI jkl photometry USE Johnson photometry
  6. UBV RI photometry USE Johnson photometry
  7. Ubvgri photometry USE Geneva photometry
  8. UCBVc BV photometry USE Cape photometry
  9. ULIRG USE Ultraluminous infrared galaxies
  10. Ultra high energy cosmic radiation USE Ultra-high-energy cosmic radiation
  11. Ultra high energy cosmic rays USE Ultra-high-energy cosmic radiation
  12. Ultra-high-energy cosmic radiation
  13. Ultra-high-energy-cosmic rays USE Ultra-high-energy cosmic radiation
  14. Ultraluminous infrared galaxies
  15. Ultraviolet astronomy
  16. Ultraviolet color
  17. Ultraviolet colour USE Ultraviolet color
  18. Ultraviolet excess stars
  19. Ultraviolet extinction
  20. Ultraviolet objects USE Ultraviolet sources
  21. Ultraviolet observatories
  22. Ultraviolet photometry
  23. Ultraviolet sources
  24. Ultraviolet surveys
  25. Ultraviolet telescopes
  26. Ultraviolet-excess stars USE Ultraviolet excess stars
  27. Umbra
  28. Unbarred spiral galaxies
  29. Uncharged black holes
  30. Underabundance
  31. Unidentified sources of radiation outside the Solar System USE Extrasolar radiation
  32. Unstable stars USE Intrinsic variable stars
  33. Upper atmosphere
  34. Upsilon Sagittarii stars
  35. Uranian moons USE Uranian satellites
  36. Uranian satellites
  37. Uranus
  38. Urca process
  39. UU Herculis stars
  40. UV astronomy USE Ultraviolet astronomy
  41. UV Ceti USE UV Ceti stars
  42. UV Ceti stars
  43. UV excess stars USE Ultraviolet excess stars
  44. UV Persei stars
  45. UV sources USE Ultraviolet sources
  46. UV telescopes USE Ultraviolet telescopes
  47. UV-Ceti USE UV Ceti stars
  48. Uvby system USE Strömgren photometric system
  49. UX Ursae Majoris stars