Betekenis van:
hour angle

hour angle
Zelfstandig naamwoord
    • the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body

    Hyperoniemen

    hour angle
    Zelfstandig naamwoord
      • (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day

      Synoniemen

      Hyperoniemen


      Voorbeeldzinnen

      1. An angle random walk of less (better) than or equal to 0.0035° per square root hour; or
      2. An "angle random walk" of less (better) than or equal to 0.2 degree per square root hour; or
      3. An "angle random walk" of less (better) than or equal to 0,0035 degree per square root hour; or
      4. an "angle random walk" of less (better) than or equal to 0,0035 degree per square root hour; or Note:7A002.b. does not control "spinning mass gyros".
      5. After verification of the specifications in paragraphs 6.1 to 6.5 and the specifications of shape and dimensions (Annex 5), the 10 samples shall be subjected to the heat resistance test (Annex 10) and one hour minimum after this test examined as to their colorimetric characteristics (Annex 6) and CIL (Annex 7) for an angle of divergence of 20′ and an illumination angle V = H = 0° or, if necessary, in the positions defined in Annex 7.
      6. An angle random walk of less (better) than or equal to 0.0035° per square root hour; or Note: 7A002.b. does not control spinning mass gyros (spinning mass gyros are gyros which use a continually rotating mass to sense angular motion). Technical Note: For the purposes of 7A002.b., 'angle random walk' is the angular error buildup with time that is due to white noise in angular rate. (IEEE STD 528-2001)
      7. An angle random walk of less (better) than or equal to 0.0035° per square root hour; or Note: 7A002.b. does not control spinning mass gyros (spinning mass gyros are gyros which use a continually rotating mass to sense angular motion).
      8. After verification of the general specifications (paragraph 6 of the Regulation) and the specifications of shape and dimensions (Annex 5), the 10 samples shall be subjected to the heat resistance test described in Annex 10 to this Regulation and at least one hour after this test examined as to their colorimetric characteristics (Annex 6) and CIL (Annex 7) for an angle of divergence of 20′ and an illumination angle V = H = 0° or if necessary, in the position defined in Annex 7, paragraphs 4 and 4.1.