TheAngularMomentumoftheSolarSystem太阳系的-汉斯出版社.PDF

Astronomy and Astrophysics 天文与天体物理, 2016, 4(2), 33-40 Published Online April 2016 in Hans. /journal/aas /10.12677/aas.2016.42004 The Angular Momentum of the Solar System Rongqin Cang1,2, Jianpo Guo1,2, Juanxiu Hu1,2, Chaoqiong He1,2 1 Department of Science and Technology, Puer University, Puer Yunnan 2 Open Key Laboratory of Mechanics in Yunnan Province, Puer Yunnan th th th Received: May 5 , 2016; accepted: May 19 , 2016; published: May 24 , 2016 Copyright © 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract The angular momentum of the Solar System is a very important physical quantity to the formation and evolution of the Solar System. Previously, the spin angular momentum of the Sun and the or- bital angular momentum of the Eight Giant Planets were only taken into consideration, when re- searchers calculated the angular momentum of the Solar System. Nowadays, it seems narrow and conservative. Using Eggleton’s code, we calculate the rotational inertia of the Sun. Furthermore, 41 2 −1 we obtain that the spin angular momentum of the Sun is 1.8838 × 10 kg∙m ∙s . Besides the spin angular momentum of the Sun and the orbital angular momentum of the Eight Giant Planets, we also account for the orbital angular momentum of the Asteroid Belt, the Kuiper Belt, the Oort Cloud, the Ninth Giant Planet and the Solar Companion. We obtain that the angular momentum of 45 2 −1 the whole Solar S