KOMPAS.TV – Planet Earth has one natural satellite, namely the moon. The moon is referred to as Earth’s natural satellite because the moon naturally orbits the earth, not man-made, and is the only celestial body closest to the earth.
The moon is estimated to have formed about 4.51 billion years ago, has a diameter of 3,474 km, and the average distance from the earth to the moon is 384,400 km.
The types of moon movement are the moon’s rotation, the moon’s revolution around the earth, and the moon’s revolution around the sun.
The period of the moon’s rotation is the same as the period of its revolution around the earth, which is 27.3 days. Meanwhile, the period of the moon’s revolution around the sun is the same as the period of the earth’s revolution, which is 365 days.
This motion of the moon causes changes in the shape of the moon at every observable phase of the earth. Even though it is in a different country, the moon that is seen will have the same phase.
The force of gravity on the surface of the moon is only one sixth of that of the earth. So if someone on earth weighs 60 kg, then he will weigh only 10 kg on the moon.
Moon has another name namely moon, lunar, or selenic. Even though it looks bright at night, the moon does not emit its own light.
The moon reflects light from the sun, which is then reflected back into the human eye.
The moon reflects a lot of sunlight, making it the second brightest object in the sky after the sun. Although not as bright as the sun, the moon is still 100,000 times brighter than the stars.
In fact, humans cannot live on the moon because the moon does not have oxygen. If you want to live on the moon, humans must provide oxygen and wear super heavy clothing and anti-solar radiation clothing.
Until now, the only spacecraft that has succeeded in bringing humans to the moon is Apollo 11.
Apollo 11 landed on the moon on July 21, 1969 carrying astronauts Neil Armstrong, Edwin Aldrin, and Michael Collins.
– Grafis: Joshua Victor
the second brightest object in the sky
