54
views
0
recommends
+1 Recommend
0 collections
    12
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Apparent Places with an Ellipsoidal Geometry of Refraction in the Earth's Atmosphere

      Preprint
       

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The displacement of star images by atmospheric refraction observed by an Earth-bound telescope is dominated by a familiar term proportional to the tangent of the zenith angle and proportional to the refractivity at the ground. The manuscript focuses on the torsion of the ray path through the atmosphere in a model of ellipsoidal atmospheric layers above the Earth surface, induced by the two slightly different principal curvatures along N-S and E-W pointing directions, depending on the geodetic latitude of the telescope site. This symmetry breaking effects apparent places in the sub-milliarcsecond range at optical and infrared wavelengths.

          Related collections

          Author and article information

          Journal
          2009-07-06
          Article
          0907.1104
          c9e359ef-e1b4-41fc-8eb0-64146c1cba6a

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          6 pages, 3 figures
          astro-ph.IM

          Instrumentation & Methods for astrophysics
          Instrumentation & Methods for astrophysics

          Comments

          Comment on this article