The Sun is equal in size to which star it is now when it is a red giant

The Sun's red giant phase is much smaller than Betelgeuse'......The Sun expands by about 250 times (radius) as a red giant, engulfing the Earth at most. If Betelgeuse were placed in the Sun's current position, it would have extended into Jupiter's orbit. (Betelgeuse is a variable star with a radius of 900 times that of the Sun at its maximum).

The size of the sun after it becomes a red giant is really not comparable, and I can't think of the most suitable one of the common stars for a while. Tianjin is small, Antares and Betelgeuse are big.

Supplement: Betelgeuse is about 15 times the mass of the Sun, considering that there is a part of the gas loss in the outer shell during the expansion process, it is at most 17 times, which is smaller than the mass of Tianjin IV, and it is inferred that it should be a blue giant star or a blue-white giant, and the diameter should not exceed 100 times that of the Sun (Tianjin 4 has more than 100 times).

Blue supergiants are generally the main-sequence stage of supermassive stars, which are massive due to their massive mass (usually dozens of times that of the Sun).

You don't have enough astronomical knowledge to build on it, and I'm going to have a hard time telling you, because you don't know so much about it, if a five-year-old asks you, "Why do airplanes fly?" You know, but you don't know it, because he knows so little knowledge, and he just intervenes and asks questions that are beyond his knowledge, and he really doesn't know how to say it, and it takes more than 2,000 words.

It should be about the same as the big horns of the shepherd.

The largest planet in the solar system is the Wood Tsai Calendar.

Jupiter is 10,000 kilometers in diameter, and apart from Venus, Jupiter is the brightest planet. Jupiter is mainly composed of hydrogen and helium, and the central temperature is estimated to be as high as 30,500 degrees. There are 8 planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Jupiter is the largest and fastest rotating planet among the eight planets in the solar system. Its mass is one-thousandth that of the Sun, which is twice the mass of the other seven planets in the Rotten Solar System combined.

Jupiter, Saturn, Uranus, and Neptune are all gas planets, so these four are collectively called Jupiter-like planets (Jupiter and Saturn are collectively called giant planets). Jupiter is mainly composed of hydrogen, followed by helium, which accounts for 25% of the total mass, and 70% of all the planets of the solar system, and the core contains other heavier elements.

Jupiter main components:

1. Jupiter is composed of 90% hydrogen and 10% helium (the ratio of atomic numbers, 75 to 25% by mass) and trace amounts of methane, water, ammonia and "stones". This is very similar to the composition of the primordial solar system nebulae that formed the entire solar system.

2. Jupiter may have a stony core, equivalent to 10 to 15 Earth's masses.

3. On the inner core, most of the planetary material is concentrated, which exists in the form of liquid metal hydrogen. These most modest forms on Jupiter may only exist at a pressure of 4 billion bar, which is the environment inside Jupiter (as is Saturn).

4. Liquid metallic hydrogen is composed of ionized protons and electrons (similar to the interior of the sun, but at much lower temperatures). At the temperature pressure inside Jupiter, hydrogen is liquid rather than gaseous, making it the electronic conductor and source of Jupiter's magnetic field.

The above content refers to Encyclopedia - Jupiter.

Except that the closest star to us from the Sun is Proxima Centauri. Proxima Centauri in the Solar System is the third star of the Centauri triad of Liquid's South Gate (Centauri). It is the closest star (light-years) to the solar system, and Proxima Centauri is a rather faint star.

It is only 14% of the diameter of the Sun, and 12% of its mass – and its luminosity is only that of the Sun.

Proxima Centauri, a red dwarf star that appears from Earth, was very faint until 1915 when it was discovered in South Africa by Robert Innis, then director of the Joint Observatory in Johannesburg. In this group of triple stars, stars A and B form a binary star system, and star C (Proxima Centauri) orbits the center of mass of stars A and B.

Proxima Centauri is about light-years away, or 266872 astronomical units, from Earth. The closest stars to Proxima Centauri are, in order, the other two stars of the Triad Centauri (light-years), the Sun, and Barnard's (light-years).

From Earth, Proxima Centauri is about 2° from the angle of view of Centauri A, or 4 times the diameter of the Full Moon.

Proxima Centauri was formed at the same age as stars A and B, about 100 million years ago, and slightly earlier than the Sun's (4.6 billion years). But because of its small mass, the rate of thermonuclear reactions is slow and unstable, so astronomers estimate that it can live for more than 100 billion years.

Summary. Hello, the closest of the eight planets to the Sun is Mercury.

The eight planets are the eight large planets of the solar system, according to the distance from the sun from near to far, they are Mercury ( ) Venus ( ) Earth ( ) Mars ( ) Jupiter ( ) Saturn ( ) Uranus ( ) Neptune ( ) Most of the eight planets have the same rotation direction as the direction of revolution. There are only two exceptions: Venus and Uranus. Venus rotates in the opposite direction to its revolution.

Among the eight planets in the solar system, Jupiter is the largest, so what is the closest star to the sun?

Hello, the closest of the eight planets to the Sun is Mercury. The eight planets are the eight large planets of the solar system, according to the distance from the sun from near to far, they are Mercury ( ) Venus ( ) Earth ( ) Mars ( ) Jupiter ( ) Saturn ( ) Uranus ( ) Neptune ( ) Most of the eight planets have the same rotation direction as the direction of revolution. There are only two exceptions: Venus and Uranus.

Venus rotates in the opposite direction to its revolution.

Relatively good.

Proportionally, Jupiter is less than a thousandth the size of the Sun. Jupiter is 318 times more massive than Earth and 1,321 times larger than Earth.

Jupiter is a big guy and is the largest of the eight planets in the solar system. It has a mass of one-thousandth the mass of the Sun and a mass of the other seven planets in the Solar System combined.

The diameter of the Sun is 1.39 million kilometers Jupiter has a diameter of about 10,000 kilometers, and among the planets, Jupiter is the largest, more than 1,000 times the size of the Earth, but compared with the Sun, Jupiter's volume is only one thousandth of the Sun.

Jupiter is the fifth planet in the solar system outward from the sun and is the largest. Ancient astronomers already knew about the planet, and the Romans called it Jupiter after their gods.

In ancient China, Jupiter was called the star of the year, and its orbit around the celestial sphere was 12 years, which is the same as the earthly branch. In the Western Han Dynasty, the astronomer Sima Qian, the author of the "Historical Records of Tianguanshu", found that the star was cyan from actual observation, which was associated with the "Five Elements" doctrine, and officially named it Jupiter.

Jupiter is a giant planet with a mass of one-thousandth the mass of the Sun, but twice the mass of the other planets in the solar system combined. Among the planets in the solar system, Jupiter and Saturn are gas giants (Uranus and Neptune are ice giants).

Jupiter is the big brother of the solar system and can fit 1,300 Earths, Jupiter is too small compared to the Sun Daddy, the Sun can hold 1.4 million Earths, Jupiter has a diameter of 140,000 kilometers, and the Sun has a diameter of 1.4 million kilometers, and the Sun is 10 times the diameter of Jupiter.

Jupiter is the largest of the eight planets in the solar system, with an extremely large mass, more than twice that of the other seven planets combined, 318 times that of Earth, and 1,321 times the volume of Earth. In order of distance from the Sun, Jupiter is fifth. At the same time, Jupiter is also the fastest rotating planet in the solar system, so Jupiter is not positively spherical, but the poles are slightly flattened and the equator is slightly bulging.

Jupiter is the fourth brightest star in the sky, after the Sun, the Moon, and Venus (sometimes it is slightly fainter than Mars, but sometimes it is brighter than Venus).Jupiter is mostly composed of hydrogen and helium, and its central temperature is estimated to be as high as 30,500

The diameter of the Sun is 1.39 million kilometers Jupiter has a diameter of about 10,000 kilometers, and among the planets, Jupiter is the largest, more than 1,000 times the size of the Earth, but compared with the Sun, Jupiter's volume is only one thousandth of the Sun.

Jupiter, one of the eight planets in the solar system, is the fifth in order of distance from the Sun (from near to far), and is also the largest and fastest rotating planet in the solar system. Jupiter is mostly composed of hydrogen and helium, and its central temperature is estimated to be as high as 30,500In ancient China, it was called the year star, and it was taken that it circled the celestial sphere for 12 years, which was the same as the earthly branch.

Jupiter (Latin: Jupiter) is commonly known in Western languages, derived from the king of gods in Roman mythology, the equivalent of Zeus in Greek mythology.

Jupiter, which is larger than the other planets of the solar system combined.

Jupiter, with an equatorial radius of 71,492 km, a mass of 18986000000000000000000000000000 kg, and an average density of 1,326 kg cubic meters.

There are a total of 38 stars within 15 light-years of the Sun.

1.Proxima Centauri (V645) (light-years from apparent magnitude Centauri A b (light-years magnitude.)

2.Barnard Star (Ophiuchus light-years magnitude.

359 (Wolf, 359 Leo, light years, magnitude.)

4.Laland21185 (Ursa Major light-years magnitude 5.)Sirius (Canis Major) a b (light years magnitude 6.)Rutan 726-8 A (BL Cetus) B (UV Cetus) (Light-years Magnitude.)

154 (v1216 sagittarii) (light years, magnitude 248 (hh andromedae) (light years, magnitude 9.)Constellation Wave (Celestial Garden, Eri) (light-years Magnitude 9352 (light-years magnitude.)

128 (Ross 128) (Virgo Light-years Aquarii (Rutan 789-6) a b c (Light-years Magnitude 13.)South River III (Canis Minor) a b (light years magnitude 14.)Cygnus 61 (61 cygni) a b (light years magnitude 2398 a struve 2398 b (light years magnitude 34 a groombridge 34 b (light years magnitude indi a ba bb (light years magnitude 23 > 23) cancri (light years magnitude.

19.Ceti (Amakura Five, Cetus Star, Tau Ceti, Lightyear Magnitude.

1061 (light-years magnitude.

Ceti (YZ Cetus light-year magnitude.

22.Rutan (Canis Minor, light years magnitude.

s star (light-years magnitude.

1845-6357 a b (Peacock light years magnitude?) )25.Captan (Desaf light-years magnitude.

8760 (light-years magnitude.)

60 a b (light years magnitude.

1048-3956 (light-years magnitude.)

614 a b (light-years magnitude.

628 (light-years magnitude.)

maanen's star (light-years magnitude.

1 (light-years magnitude.)

424 a b (light years magnitude.

arietis (light-years magnitude.

687 (light-years magnitude.)

292 (light years magnitude.

674 (light-years magnitude.)

1245 a b c (light years magnitude Picture:

The order in which the planets are arranged from largest to smallest is;

Jupiter (71400), Saturn (60000), Neptune (49400), Uranus (25900), Earth (6356-6378), Venus (6073), Mars (3332), Mercury (2439), Pluto (1200).

Jupiter is one of the eight planets in the solar system, the fifth planet from the inside out, and the largest and fastest rotating planet in the solar system. It is one-thousandth the mass of the Sun, but twice the mass of the other seven planets in the Solar System combined. Jupiter, Saturn, Uranus, and Neptune are all gas planets, so they are also called Jupiter-like.

On February 23, 2012, scientists announced the discovery of two new moons of Jupiter, bringing the total number of satellites to 68.

Jupiter is a gas planet. Gas planets do not have a solid surface, and their density of gaseous matter increases with depth (we start counting their radius and diameter from the equivalent of 1 atmosphere on their surface). What we see is usually the tip of the clouds in the atmosphere, with a slightly higher pressure than 1 atmosphere.

Jupiter is mainly composed of hydrogen and helium, it is made up of 86% hydrogen and 14% helium, and the central temperature is estimated to be as high as 30500. Jupiter has the largest volume and mass among the eight planets in the solar system, it has an extremely huge mass, more than the sum of the other seven planets, is twice that of the earth, and the volume is 1316 times that of the earth.

Jupiter is mainly composed of hydrogen, followed by helium, which accounts for 25% of the total mass, and the core contains other heavier elements. Shape: Oblate spheroid due to its rapid rotation (with a slight but noticeable bulge near the equator).

The outer atmosphere is clearly divided into multiple zones according to latitude, and the margins where each zone is connected are prone to turbulence and storms. The most notable example is the Great Red Spot, which was first discovered with telescopes in the 17th century. Orbiting the planet is a weak system of planetary rings and a powerful magnetosphere.

Jupiter has at least 63 moons, including 4 major moons, which were discovered by Galileo in 1610 and collectively known as Galilean moons, and the largest of its moons, Europa, is even larger in diameter than Mercury.