An estimation of the oblateness of Sun from the motion of Icarus |
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| Authors: | W Landgraf |
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| Institution: | (1) Universität Göttingen, Göttingen, Germany;(2) Present address: Rua Guaruja Q.7 L.40/41, BR-24910 Itaipua cu, Germany |
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| Abstract: | From astrometric observations of minor planet (1566) Icarus from 1949 to 1987 were made solutions for improved orbital elements of Icarus and the quadrupole moment of the Sun. The formal result was J2 = -0.6±5.8 &d 10–6. From this we can conclude that J
2 is very probably less than 2 · 10–-5. |
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