Astronomy, considered in the most general way, is a great problem of mechanics, the arbitrary data of which are the elements of the celestial movements; its solution depends both on the accuracy of observations and on the perfection of analysis.


Celestial Mechanics - Preface, Chelsea Publishing Company. 1966


Astronomy, considered in the most general way, is a great problem of mechanics, the arbitrary data of which are the elements of the celestial...

Astronomy, considered in the most general way, is a great problem of mechanics, the arbitrary data of which are the elements of the celestial...

Astronomy, considered in the most general way, is a great problem of mechanics, the arbitrary data of which are the elements of the celestial...

Astronomy, considered in the most general way, is a great problem of mechanics, the arbitrary data of which are the elements of the celestial...