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Validity of the Relations Between the Synodic and Sidereal Rotation Velocities of the Sun |
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| Authors: | I. Skokić R. Brajša D. Roša D. Hržina H. Wöhl |
| Affiliation: | 1. Cybrotech Ltd, Zagreb, Croatia 2. Hvar Observatory, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia 3. Zagreb Astronomical Observatory, Zagreb, Croatia 4. Kiepenheuer-Institut für Sonnenphysik, Freiburg, Germany |
| Abstract: | Existing methods for conversion between synodic and sidereal rotation velocities of the Sun are tested for validity using state-of-the-art ephemeris data. We found that some of them agree well with ephemeris calculations while others show a discrepancy of almost 0.01° day?1. This discrepancy is attributed to a missing factor and a new corrected relation is given. |
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