title: Figures of Pluto and Charon and their relative motion
metadata.name: dc.contributor.author
metadata.value: Kholshevnikov, Konstantin V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Mikryukov, Denis V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Jazmati, Mohammad S.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-10-07T13:01:39Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-10-07T13:01:39Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Kholshevnikov K.V., Mikryukov D.V., Jazmati M. S. Figures of Pluto and Charon and their relative motion. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021, vol. 8 (66), issue 3, pp. 533–546.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu01.2021.314
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/33268
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The comparative effect of two factors on the translatory motion of the centres of mass of
  the Pluto – Charon system is investigated. The first important factor is the non-sphericity
  of the shape and gravitational field of the bodies in the system. The second is the gravitation
  of the Sun. As a measure of the influence of both factors we use the ratio of the
  corresponding perturbing acceleration to the main one. The main acceleration is caused
  by the mutual Newtonian attraction of Pluto and Charon. It has been established that for
  the first factor this measure is of the order of 10−6, while for the second factor it is two
  orders of magnitude smaller. This explains why the Lidov Kozai effect (despite a large
  mutual slope of 96◦ between the planes of the satellite’s orbit around the planet, and the
  barycentre of the system around the Sun) does not appear. The situation is similar to the
  case with the satellites of Uranus. As a result, the Pluto – Charon system remains stable
  at least on a timescale of millions of years. The tidal effect of the Sun on the surface shape
  of the bodies under study is also estimated. The ratio of the tidal potential of the Sun at
  a point on the surface of the body to the gravitational potential of the body itself at this
  point is taken as a measure of impact. It turned out to be of the order of 3 · 10−12, which
  is more than six orders less than the influence of rotation and mutual attraction of Pluto
  and Charon. In fact, the Sun does not affect the figures of the bodies of the system.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work is supported by Russian Foundation for Basic Research (grant No. 18-02-00552).
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 8 (66); Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: planets
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: satellites
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Pluto
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Charon
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: equilibrium figures
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Jacobi coordinates
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Lidov – Kozai effect
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Figures of Pluto and Charon and their relative motion
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 533-546.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/33268/1/533-546.pdf
resources.format: Adobe PDF
resources.size: 359,28 kB