Mars and stars, whether Mars is a planet or a star

1) The Sun is divided into two parts, the first time the Sun expands due to the exhaustion of hydrogen, and the radius expands to about 1 astronomical unit (i.e., swallows up all the Earth's orbit), but the gravitational attraction to Mars decreases due to the loss of the Sun's mass. (easily deduced with the law of circular motion) to move Mars outwards and move Mars away from the Sun.

2) Telescopes that can observe Uranus and Neptune, if you just observe them (just see them with a telescope) 1 to 2,000 yuan. If you want to shoot the kind of ** on TV, (that is, to shoot the blue surface), it is very expensive, and our school's telescope with a diameter of 400mm can only shoot the surface of Saturn (market price of 200,000 yuan), and maybe civilian telescopes are only professional telescopes for foreign hunters (about 200,000 US dollars).

3) Uranus may be more beautiful because Neptune is too far from the Sun. Even with a spacecraft, it's too dark. And Uranus appears brighter.

The solar system will not**, the sun will become a red giant, and the diameter of the sun after becoming a red giant is about 300 million kilometers, which is exactly the diameter of the earth's orbit, and Mercury, Venus, and the earth will be swallowed by the sun one by one, so Mars will not be swallowed by the sun.

At its brightest, Uranus is a 6th magnitude star, which is the limit of what can be seen by the naked eye, and Neptune is an 8th magnitude star, which cannot be observed by ordinary telescopes.

Neptune's surface pattern is more beautiful than that of Uranus, which is simpler.

The solar system will not **, the sun will expand on the periphery and collapse on the inside in the later stages. Mars will not be swallowed. Uranus and Neptune are not visible through ordinary telescopes, as for which one is better, I think Neptune is better...

Mars is a planet.

It is the fourth closest planet to the Sun and the solar system.

second only to Mercury.

The second smallest planet is one of the four terrestrial planets in the solar system. In ancient Europe, Mars was called Mars.

The god of war in ancient Roman mythology, also known as the "Red Planet". In ancient Chinese, it was called Yingfu because it was like fire, and its position and brightness often changed to make people unpredictable.

Reason for detection

In 1996, the famous astronomer Carl Sagan.

In the report, written at the request of NASA (NASA), the reasons for the exploration of Mars are cited:

1 Mars is one of the closest planets on Earth that humans can explore.

2 About 4 billion years ago, Mars had a similar climate to Earth, with rivers, lakes and possibly oceans, for unknown reasons. Exploring the causes of the climate change on Mars is of great significance for the preservation of Earth's climatic conditions.

3 Mars has a huge ozone hole, the sun's ultraviolet rays.

Shine on Mars without obstruction. Probably that's why Corsair 1 and Corsair 2 failed to find organic molecules. Mars research helps to understand the Earth's ozone layer.

Once it disappears, the extreme consequences for the planet.

4 Finding fossils of historical life on Mars is one of the most exciting purposes of planetary exploration, and if found, it means that life can rise on planets in the universe if conditions permit.

No, Mars does not have small stars.

Mars is the fourth closest planet to the Sun and the second smallest planet in the solar system after Mercury. It is one of the four planets in the solar system. Europeans called Mars Mars, the ancient Roman god of war, also known as the "Red Planet".

In ancient China, it was called "phosphorus" because it resembled fire, and its position and brightness often changed so that people could not ** it.

Its orange-red appearance is due to the fact that its surface is covered with hematite (iron oxide). Mars is about half the diameter of the Earth, and its inclination is similar to its rotation period, but its orbital period is twice that of the Earth. Mars can reach brightness, but most of the time it is fainter than Jupiter.

Mars's self-**

Mars has an axis of inclination of degrees, similar to Earth, and has four seasons, although the four seasons are twice as long as Earth's. Since the orbital eccentricity of Mars is about the same as that of Earth, the length of the four seasons is uneven, and because the aphelion of the Northern Hemisphere is close to the summer solstice, the spring and summer of the Northern Hemisphere are about 40 days longer than the autumn and winter. October 26, 2009 is the spring equinox in the Northern Hemisphere, and May 13, 2010 is the summer solstice in the Northern Hemisphere, which is spring.

The orbit of Mars, like that of Earth, is constantly changing due to the influence of other celestial bodies in the solar system. The orbital eccentricity varies from 96,000 years to 2,100,000 years. On the other hand, the time range of the Earth ranges from 100,000 to 10,000 years, from year to year (see Milankovitch cycle), and the minimum distance between Mars and Earth is gradually decreasing.

As for the axis of rotation of Mars, its inclination is resistant to dryness, but it can vary between 13 and 40 degrees, with a period of more than 10 million years. Unlike Earth, which stabilizes between degrees and degrees, Mars does not have a huge moon like the Moon to maintain its axis of rotation. Because there is no tidal action of the Great Moon, the rotation period of Mars does not change much, unlike the Earth, which will slowly lengthen, so the similarity of the rotation period of the two planets today is only a temporary phenomenon.

Fake news, Mars is not a small star. Chain Xun Mars is a planet. And there are no other stars in the solar system except the sun.

The science is based on the fact that stars undergo nuclear fusion in their cores to produce energy that travels outward and then radiates from the surface into outer space. Once the nuclear reaction in the core is exhausted, the life of the star is coming to an end.

No, Mars does not have small stars. Mars is the fourth closest planet to the Sun, and the second smallest planet in the solar system after the Shui Tong Planet. It is one of the four terrestrial planets in the solar system.

Europeans called Mars Mars, the ancient Roman god of war, also known as the "Red Planet".

Mars is a planet. Mars is derived from the ancient Greek word and is known as the "god of war", because ancient people believed that its color resembled bright red blood, so it was regarded as the god of war. Mars is the fourth planet in the solar system and is located about 100 million kilometers from the Sun.

We already know where Mars is in the solar system, but there are many things we don't know, such as the surface features of Mars, its atmospheric composition, and its traditional concepts. Let's take a closer look.

In the past few decades, human beings have continuously sent various information about Mars through spacecraft, probes and other means. Through the dust, rocks and topography data on Mars, scientists have found that there are many craters, mountains, dry riverbeds, huge canyons and other landform features on the surface of Mars, and at the same time, scientists continue to find that the Martian atmosphere is rich in carbon dioxide and some rare gas components. These discoveries prove that Mars is a planet that, like other planets such as Earth, has a complex geological history, a small atmosphere, and evidence of the presence of water.

In addition, we also know that Mars has a rotation cycle of 24 hours and 37 minutes similar to that of Earth, with alternating seasons, similar snowpack and snowmelt periods as Earth, as well as unique weather phenomena such as sandstorms. However, due to the harsh surface environment of Mars, human exploration of Mars is still in the initial exploration stage, and many questions need to be further studied and answered.

Overall, Mars is a planet and not a star. Although some of the constellations in the Mars and Sun constellations share similar names, they represent different entities. We need to further explore the surface features, atmospheric composition and other information of Mars to better understand this mysterious planet and provide basic data and scientific support for human research and life on Mars in the future.

Mars is a planet. Mars is the fourth closest planet to the Sun and the second smallest planet in the Solar System after Mercury, one of the four terrestrial planets in the Solar System. Mars has an axis of rotation tilt of degrees, which is similar to that of Earth, so it also has four seasons, but the seasons are about twice as long as Earth.

Mars is about half the diameter of Earth, 15% of its volume and 11% of its mass.

The Martian atmosphere is dominated by carbon dioxide, thin and cold, full of impact craters, canyons, sand dunes and gravel, with no stable liquid water, and the southern hemisphere is ancient, highland full of impact craters, and the northern hemisphere is a younger lowland plain. Mars has Mount Olympus, the largest known mountain in the solar system, and Mariner Canyon, the largest canyon.

Mars has two natural satellites: Phobos and Deimos, which are irregularly shaped and may have been captured asteroids. Based on observational evidence, Mars has been observed to resemble the Lianghuipeng phenomenon of groundwater gushing, with a partial retreat of the Antarctic ice cap, and radar data showing the presence of large amounts of water ice at the poles and beneath the surface in the mid-latitudes. Oaks.

Mars does not have small stars and will not have small stars for the following reasons:

1. Mars is one of the eight planets in the solar system.

It is a terrestrial planet with a diameter of about 53% of the diameter of the Earth and a mass of about 14% of the Earth's mass. The inclination of the axis of rotation and the period of rotation are very similar to those of the earth, and the time for one revolution is about the revolution of the earth.

2 times the time.

2. According to the current theory of star formation and evolution, as well as actual observations, the smallest star must be Jupiter, the largest planet in the solar system.

Eighty times the mass to weigh Zheng Pei. At present, there is no such large planet in the solar system except for the sun, the only star, so there will be no small stars in the solar system.

3. Mars has small celestial bodies orbiting it, but they are not small stars, but its two natural satellites. But these two satellites are too small and irregular in shape. The big one is called the only one of the fire guards.

Its size is kilometers and it is about the size of a large mountain on Earth. The small one is called Deimos.

It is even smaller than Phobos, measuring 15 km x 11 km. So it can't become a star.

4. If there is a planet with a mass of more than 80 times the mass of Jupiter near Mars, it will never be a "small star of Mars", because the mass of Mars is too small, it is impossible for a small star to revolve around Mars, but Mars will revolve around a small star, and Mars will become a planet of a small star, not a planet of the sun.