English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this comment we explain the discrepancies mentioned by the authors betweentheir results and ours about the influence of the gravitational quadrupolemoment in the perturbative calculation of corrections to the precession of theperiastron of quasielliptical Keplerian equatorial orbits around a point mass.The discrepancy appears to be consequence of two different calculations of theangular momentum of the orbits.

Comment on "From geodesics of the multipole solutions to the perturbed Kepler problem"