AAS 204th Meeting, June 2004
Session 88 Solar Photosphere and Below
SPD Oral, Thursday, June 3, 2004, 10:30-11:30am, 702

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[88.01] On the Constancy of the Solar Diameter

J. R. Kuhn (IfA, Univ. Hawaii), R. Bush (Stanford), M. Emilio (Univ de. Ponta Grossa, Brazil), P. Scherrer (Stanford)

The solar radius and its variation have now been measured during most of a solar cycle from the Solar and Heliospheric Observatory, using the Michelson Doppler Imager. These instruments provide unique astrometric data from above the Earth's atmosphere. A new analysis based on MDI data yields a refined measurement of the solar radius and no evidence of secular or solar cycle size variations.

The author(s) of this abstract have provided an email address for comments about the abstract: kuhn@ifa.hawaii.edu

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