Astronomers compared the sidereal periods of the two exoplanets to understand their orbital resonances.

Astronomers measured the planet's rotation over several sidereal days to determine its axial tilt.

At the town hall, supply-siders argued that tax cuts would stimulate long-term growth.

The sidereal orbital period of Mars determines the length of its year relative to the fixed stars.

Astronomers measured the sidereal rotation period of the newly discovered exoplanet to study its climate patterns.

Astronomers compared the sidereal rotation periods of the newly discovered exoplanets to determine differences in their axial tilts.

Astronomers measured the sidereal orbital periods of the newly discovered exoplanets to refine their models.