Accurate Determination of the Solar Photospheric Radius
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1998
- DOI:
- arXiv:
- arXiv:astro-ph/9803131
- Bibcode:
- 1998ApJ...500L.195B
- Keywords:
-
- ASTROMETRY;
- SUN: FUNDAMENTAL PARAMETERS;
- SUN: OSCILLATIONS;
- Astrometry;
- Sun: Fundamental Parameters;
- Sun: Oscillations;
- Astrophysics
- E-Print:
- 6 pages, 2 figures Submitted to Astrophys. J. Lett., March 9 1998 Uses AASTeX Macro package aas2pp4
