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Basic orbital mechanics from simple observations of the main satellites of Saturn, Uranus and Neptune

机译:来自土星,天王星和海王星的主要卫星的简单观测的基本轨道力学

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摘要

We present a practice on astrodynamics based on telescopic observations of the motions of the major satellites of Saturn (Mimas, Enceladus, Thetis, Dione, Rea, Titan, Hyperion, Iapetus), Uranus (Miranda, Ariel, Umbriel, Titania and Oberon) and Neptune (Triton). The practice was developed with the students of the Master in Space Science and Technology of the Basque Country University (Sanchez-Lavega et al 2014 Eur. J. Eng. Educ. 39 518-26) using a telescope of 28 cm in diameter and a video camera. The images, obtained during the years 2014-2016, were used to calculate the basic orbital parameters of the satellites, derive the planet masses and, in the case of Saturn, study of the gravitational resonance phenomena. For Triton, the main satellite of Neptune, we use its retrograde orbit to comment on its origin and long-term orbital stability. This study is a continuation and extension of previous works were we used similar techniques to analyse the orbital dynamics of Jupiter's Galilean satellites (Ordonez-Etxeberria et al 2014 Eur. J. Phys. 35 045020; Ordonez-Etxeberria et al 2016 Eur. J. Phys. 37 065601; Rojas and SanchezLavega Eur. J. Phys. 38 065601).
机译:我们展示了基于伸缩观测的临时卫星的伸缩观测的伸缩性观察(Mimas,Enceladus,Thetis,Dione,Rea,Titan,Hyperion,Iapetus),天王星(Miranda,Ariel,Humbriel,Titania和Oberon)和海王星(Triton)。该做法是与巴斯克乡村大学的太空科学与技术硕士学位(Sanchez-Lavega等,2014 EUR。J. Eng。教育。39 518-26)使用直径28厘米的望远镜和一个摄像机。在2014-2016年内获得的图像用于计算卫星的基本轨道参数,导出行星群众,并且在土星的情况下,对引力共振现象的研究。对于海王星的主要卫星,我们使用其逆行轨道来评论其起源和长期轨道稳定性。本研究是先前作品的延续和延伸是我们使用类似的技术来分析木星伽利略卫星的轨道动态(Ordonez-etxeberria等,2014 EUR。J. Phys.35 045020; Ordonez-Etxeberria等,2016 EUR。J.题。37 065601; Rojas和Sanchezlavega欧元。J. Phys。38 065601)。

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