How many days on Earth is one day on the Moon?

According to astronomers' calculations, the average distance between the Earth and the Moon is about 384,000km. So how many days on Earth is 1 day on the Moon?

1 day on the moon is equal to 29 days on Earth.

In the history of human space exploration, landing on the Moon has always been considered a great feat of mankind. Whether it is the Apollo Moon landing program or the recent Chang'e Moon exploration project, astronauts always consider the Moon a mysterious and attractive destination. However, while we are pursuing the beauty of the Moon, few people think of a question: When astronauts stay on the Moon for a day, how long will they stay on Earth? The answer to this question is 29 days .

The average distance between the Earth and the Moon is about 384,000 km and the time it takes for the Moon to orbit the Earth is about 27.3 days. This means that the Moon takes longer to orbit the Earth than the Earth takes to rotate on its axis. In other words, while the Earth completes a rotation every 24 hours, the Moon experiences a sunrise about every 709 hours.

The reason for this difference is mainly due to the different rotation speeds of the two planets. The time it takes for the Earth to rotate once is 24 hours, while the time it takes for the Moon to rotate once is 27.3 days . Because the Moon rotates slowly, when astronauts spend a day on the Moon, nearly a month has passed on Earth.

After astronauts spend a day on the Moon, they will discover that a lot of time has passed on Earth. For astronauts working in space, they need to adapt to the time difference on different planets and adjust their biological rhythms to adapt to the new environment.