They named all the planets after gods. For example, they named Mars after the god of war.
Astronomers.
Ancient astronomers called the celestial object Selene the moon. Selene was the Greek goddess of the moon, and the name was often used interchangeably with Luna in Roman mythology.
Astronomers
The inner planets have been known about since ancient times. Astronomers in Ancient Egypt, Greece and Persia all would have studied the skies and noticed the inner planets. The planets, of course, are completely different to stars, as stars are 'fixed' in the sky (as we look at them, anyway), while planets seem to meander around going nowhere in particular. The odd behaviour led astronomers to attribute this to godly doings...
Planet unknown in ancient times is Uranus. It was discovered in 1781 by William Herschel and was the first planet discovered using a telescope. The previous planets known to ancient astronomers were Mercury, Venus, Mars, Jupiter, and Saturn.
Ancient astronomers were able to observe the movements of the planets in the night sky, track their positions relative to the stars, and document their retrograde motion. They also noted patterns in the planets' movements and made connections between their positions and earthly events.
Ancient Roman astronomers named the red planet "Mars," after their god of war because its color reminded them of the blood of a wounded soldier.
Astronomers
Astronomers use a telescope to view planets directly.
Teams of astronomers have studies all possible planets.
microlensing
ancient astronomers thought it was spilled milk.
Many astronomers, historians, regular people, and scientisis know about the planets in our Solar system.
astronomers
Because the ancient Greek astronomers were one of the first astronomers to discover the planets. As they looked at the planets over time they moved into different places. The planets seemed o orbit the Sun so the Greek astronomers called them planets, which meant :wanderers.
I think the Romans named the planets after their gods.
Astronomers.