How different is Mars on Earth?

The most similar thing between Mars and the Earth is the rotation period of 24.62 hours, which is only more than 3 minutes slower than the rotation period of 24 hours of the Earth, which makes Mars have the phenomenon of day and night alternation similar to that of the Earth, which provides convenience for human beings to immigrate to Mars in the future.

Our earth revolves around the sun from west to east, which makes the earth alternate in four seasons. The included angle between the equatorial plane of the earth and the orbital plane (the intersection angle of the equator and the equator) is now 23 degrees and 26 minutes, which is the degree of our tropic of cancer. Coincidentally, Mars also revolves around the sun sideways from west to east. Now the angle between the equatorial plane of Mars and the orbital plane of Mars is 25.19 degrees, which is very close to the intersection angle of the earth. This is another most similar place between Mars and the Earth, which makes Mars have a similar phenomenon of four seasons alternation.

Because the orbit of Mars is outside the orbit of the Earth, that is, farther away from the sun, its period of revolution is almost twice as long as that of the Earth, which naturally leads to the season time of Mars being almost twice as long as that of the Earth.

The perihelion of Mars is 26.669 million kilometers away from the sun, and the solar radiation per unit area is 52.7% of that of the Earth, which is about 15 million kilometers away from the sun. The apohelion of Mars is 249.29 million kilometers away from the sun, and the solar radiation per unit area is 36.2% of that of the Earth. If Mars has an atmospheric density similar to that of the Earth, the near-surface temperature near the equator of Mars will be roughly similar to that in summer and autumn near 6 degrees north and south latitude of the Earth. However, because the density of the Martian atmosphere is only 1% of that of the Earth, the reverse radiation of the Martian atmosphere is very weak, and there is no good warm-keeping effect of the Earth's atmosphere, which leads to that the near-surface temperature in the equatorial region of Mars is only equivalent to the temperature in winter and spring near the latitude of 6 north and south of the Earth.