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“Astrometry” experiment to measure the temporal variations in the shape and diameter of the sun on the service module of the Russian segment of the international space station |
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| Authors: | Kh. I. Abdussamatov Yu. V. Alekseev A. A. Antoshkov L. N. Arkhipova V. P. Budin D. P. Veselov A. A. Garbul’ A. I. Ivanov I. S. Izmailov V. A. Karinskii V. P. Konoshenko A. A. Kuznetsov A. V. Markov S. N. Martynov V. E. Mel’nikov L. A. Mirzoeva I. I. Nikolaev L. Sh. Oleinikov I. N. Sivyakov S. I. Khankov |
| Affiliation: | (1) Pulkovo Astronomical Observatory, Russian Academy of Sciences, Pulkovskoe sh. 65, St. Petersburg, 196140, Russia;(2) Korolev Energy Rocket-Space Corporation, Korolev, Russia;(3) Vavilov State Optical Institute All-Russian Research Center, St. Petersburg, Russia |
| Abstract: | The “Astrometry” project will provide coordinate—photometric monitoring of the sun’s limb shape and disk diameter with a 0.005″ accuracy and its oblateness at a ～ 10?6 R ? level for 6 yr. The project will investigate the internal structure and dynamics of the sun and the variations of its global parameters up to the core. The project will also investigate the fine structure and dynamics of the photosphere both on the disk and at the limb. The project is scheduled to be implemented at the ascending phase of new solar cycle 24. |
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