How to identify Venus, Jupiter, Saturn and Mars? What is the relationship between Mars and Earth?

Mercury can only appear near the sun. If it is other celestial bodies, how to distinguish them? Have you also thought about this question? Mars is one of the eight planets in the solar system. It is the fourth planet from the inside to the outside of the solar system and is a terrestrial planet. Next, let's take a closer look at how to distinguish Venus, Jupiter, Saturn and Mars.

Contents of this article

1. How to identify Venus, Jupiter, Saturn and Mars

2. What is the relationship between Mars and Earth?

3. What planet is Mars?

How to identify Venus, Jupiter, Saturn and Mars

1. Mercury can only appear near the sun, or within an hour before the sun rises in the early morning, or within an hour after the sun sets. So if the star you see is very high above the horizon, it is not Mercury.

2. Venus is the brightest planet, but it does not appear in the east at sunset or in the west before sunrise. It is easy to be confused with Jupiter because Jupiter is also brighter during opposition.

3. Mars is orange-red and its brightness is generally lower than that of Jupiter. It is very bright during opposition, but it will also appear red.

4. Jupiter is relatively bright, emitting blue light, sometimes with golden light. You can see the four small satellites next to it with a 50-degree binoculars, which are relatively easy to identify.

5. Saturn is yellowish in color and not very bright. Mars, Jupiter and Saturn will appear at any position near the ecliptic at the zenith or horizon.

What is the relationship between Mars and Earth?

Mars and Earth both belong to the solar system and revolve around the sun. Mars is one of the eight planets in the solar system and the fourth planet from the inner to the outer solar system. It is a terrestrial planet with a diameter of about 53% of the Earth and a mass of 14% of the Earth. Its axial inclination and rotation period are similar to those of the Earth.

What planet is Mars?

Earth-like planet. Mars is one of the eight planets in the solar system. It is the fourth planet from the inside to the outside of the solar system. It is an earth-like planet with a diameter of about 53% of the Earth. Its rotation axis inclination and rotation period are similar to those of the Earth. Its revolution is about twice the time of the Earth's revolution. It is called "Mars, the God of War" in the West. The orange-red surface is hematite (iron oxide) on the surface.

Mars is basically a desert planet, with sand dunes and gravels all over the surface and no stable liquid water. The atmosphere, which is mainly composed of carbon dioxide, is both thin and cold, with dust suspended in it, and dust storms often occur every year. There are polar caps composed of water ice and dry ice at both poles of Mars, which grow and decline with the seasons. Compared with the Earth, the geological activity is less active, and most of the surface landforms were formed in the more active period in ancient times. There are dense craters, volcanoes and canyons, including the highest mountain in the solar system: Olympus Mons and the largest canyon: Mariner Valley. Another unique terrain feature is the obvious difference between the northern and southern hemispheres: the south is an ancient, crater-filled highland, while the north is a younger plain. Mars has two natural satellites: Phobos and Deimos, which are irregular in shape and may be captured asteroids. From Earth, Mars is visible to the naked eye, with a brightness of -2.9, only dimmer than Venus, the moon and the sun, but brighter than Jupiter most of the time. The exploration data released in December 2013 showed that there are dried up ancient lakes on Mars, or there is evidence of the emergence of life. In 2014, scientists from the University of Hawaii discovered that Martian blueberries are the remains of small meteorites and cannot prove that there was flowing water on Mars in ancient times.