Planetary satellites vary greatly in size, from very small, to some that are larger than some planets.
3 laws' of planetary motion
he didn't
Retrograde Motion
Johannes Kepler is responsible for developing the three laws of planetary motion, which describe the motion of planets around the Sun. These laws are known as Kepler's Laws of Planetary Motion and were published between 1609 and 1619.
Aristarchus of Samos
a planetary satellite is any object that orbits a planet
If by planetary satellites you mean Moons, that would be Jupiter with at least 63 confirmed moons - possibly more!
3 laws' of planetary motion
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
3 Planetary Satellites are; The Moon, Io, Titan. 3 Satellites of the Sun are; Earth, Mars, Jupiter.
Keplar figured out the laws of planetary motion using Tycho Brahe's data.
Those are called planetary satellites or natural satellites. Each planet has its own set of natural satellites that orbit around it.
They all obey Kepler's 3 laws of planetary motion.
the brightest and the sixth biggest planet
Phobos and Diemos. Both are very small, as planetary satellites go, and both are suspected of being captured asteroids.
Johannes Kepler
His laws of planetary motion.