Jupiter moves through a twelfth of its orbit in the interval of a solar year, hence another year must elapse before our earth comes again in line with the planet and the sun. As Jupiter meanwhile advances on its orbit, opposition happens about a month later year by year. In 1919, the opposition took place on January 2, and the planet was in Gemini. In 1920, opposition took place on February 3, and the planet was in Cancer. In the present year, 1921, opposition occurs on March 5, and the planet is in Leo. The opposition of Saturn takes place on the 12th.
When a planet is in opposition to the sun, it is then 180° away, and rises in the East when the sun sets the! West.
Text read from the printed page and cleaned; old type leaves the occasional error.