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Volume 10, Number 6 (2025)

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REMARKS ABOUT THE EULER’S THEORY REGARDING A BODY WITH A FIXED POINT

Volume 10, Issue 6, December 2025 | PP. 259-266 | PDF (165 K) | Pub. Date: December 10, 2025
DOI: 10.54647/physics140707 16 Downloads 62 Views

Author(s)

Monica Zoe Ciobanu, Astronomical Institute of Romanian Academy

Abstract
The paper presents the necessity to assume that the Earth is a rigid body when using the Euler’s theory regarding the solid-rigid body with a fixed point, in the nutation problems. Also, the paper suggests which may be those external forces causing the two Chandler’s periods regarding the terrestrial variation of latitude. An opinion about the Chandler’s period of 426 days is presented.

Keywords
nutation, the Euler’s mechanical moment related to the Earth’s center, Chandler’s periods.

Cite this paper
Monica Zoe Ciobanu, REMARKS ABOUT THE EULER’S THEORY REGARDING A BODY WITH A FIXED POINT , SCIREA Journal of Physics. Volume 10, Issue 6, December 2025 | PP. 259-266. 10.54647/physics140707

References

[ 1 ]	Euler, L. Theoria motus corporum solidorum seu rigidorum, 1790.
[ 2 ]	Ciobanu, M.Z. A rigorous astronomical solution. Romanian Astron. J. vol 29, Bucharest 2019.
[ 3 ]	Chandler, S. On the variation of latitude, VII, Astron, J. 12, 1892, 97.
[ 4 ]	Ciobanu, M.Z. A Secular Variation in the Moon’s Orbit Inclination Supposing the Moon is an ejected body. European Journal of Applied Sciences – Vol.12, No. 6.
[ 5 ]	Chandler, S. On the variation of latitude, VIII, Astron, J.13, 11893