Accurate Determination of the Solar Photospheric Radius

1998/03/11 by T. M. Brown, J. Christensen-Dalsgaard · 6 citations
Computer Science · Physics and Astronomy · #History and Developments in Astronomy #Solar Radiation and Photovoltaics #Solar and Space Plasma Dynamics #astro-ph

paper · pdf · doi:10.1086/311416

published as Astrophys.J.500:L195-L198,1998 · 6 pages, 2 figures Submitted to Astrophys. J. Lett., March 9 1998 Uses AASTeX Macro package aas2pp4

arxiv created 1998/03/11 · openalex publication_date 1998/06/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

The Solar Diameter Monitor measured the duration of solar meridian transits during the 6 years 1981-1987, spanning the declining half of solar cycle 21. We have combined these photoelectric measurements with models of the solar limb-darkening function, deriving a mean value for the solar near-equatorial radius of 695.508±0.026 Mm. Annual averages of the radius are identical within the measurement error of ±0.037 Mm.

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