How are the stars graded, and what are the five stars

Celestial bodies are mainly composed of stars, planets, moons, comets, meteors, meteors, and some interstellar matter, as well as nebulae.

Among them are mainly stellar planetary moons.

In general, the rank is "stellar >planetary" satellites

Among them, stars can be divided into six magnitudes according to their brightness, the brightest is a first-magnitude star, and the faintest is a sixth-magnitude star.

By brightness: standard magnitude, apparent magnitude.

By type: stars, planets, comets (you can continue to divide them).

The stars in the sky, like our sun, are stars that can shine on their own, because they are so far away from us that the light emitted is already weak when it reaches our eyes, so they can only be seen by us at night as stars twinkle and twinkle.

Luminosity (magnitude):

The ancient Greeks divided the luminosity perceived by humans into 1-6 magnitudes, that is, magnitudes, the brightest magnitude 1, the darkest magnitude 6, and later astronomical extended the stars brighter than magnitude 1 to magnitude 0, or even minus, and the starry night darker than magnitude 6 was postponed to more than 10 magnitude in order.

The phases of the star (Hérault):

Because stars are different in color (temperature), mass, and composition at each stage, they can be divided into several grades, such as red giants, white dwarfs, supernovae, giants, and so on.

Classified by spectra:

Due to the different composition of each star, that is, the spectral type can be divided into O, B, A, F, G, K, M, and each grade can be further divided, and their corresponding colors are: blue, blue and white, white, yellow and white, yellow, orange, red.

Galaxies, star clusters, star associations, binary stars, variable stars, concentrating star divisions.

"Five-Star General" is a unique military rank in the United States, officially established in December 1944 and approved by the United States Congress. The epaulettes of the five-star general are inlaid with five star emblems, which are equivalent to the rank of marshal in other Western countries. The basic condition for the promotion of a five-star general is that he must have served as the commander of the Allied theater of operations, and all those who have received this honor over the years are related to World War II.

These include George Cartlett Marshall and Dwight D. Eisenhower (who served as Commander of the European Theater of Operations), MacArthur (Commander of the Southwest Pacific Theater), and Omar Nelson Bradley (Commander of the Mediterranean Theater). The U.S. Congress has stipulated that the rank is conferred only in wartime and is not discharged for life.

The origin of the title of five-star general

Marshall believed that promotion to military rank at this stage of the war was unnecessary, even embarrassing. Further elevating him and General Henry Harry Arnold in rank would have deprived their predecessor, General Pershing, of a reasonable amount of praise and due respect for his military exploits, as soon as Marshall's colleagues in the First World War made clear.

Pershing's wartime chief of staff, retired Lt. Gen. James Guthrie Harbard, is lobbying around to stifle the motion. Mistakenly believing that General Marshall was also supporting the bill, Harbold wrote to Wadsworth on the House Armed Services Committee that General Marshall had begun to worry that Pershing thought his former aides were losing the respect they deserved for him.

The above content refers to Encyclopedia - Five-Star General.

Five stars are five-star generals in the United States, and in the past, the marshals of our country were also five stars, and the current military ranks are as follows:

One bar and one star is a second lieutenant, one bar and two stars are a lieutenant, one bar and three stars are a captain, two bars and one star are majors, two bars and two stars are lieutenant colonels, two bars and three stars are colonels, and two bars and four stars are colonels.

The military rank system of our country has reached the level of general, which is an olive branch and not a bar, a major general has 1 star on an olive branch, a lieutenant general has 2 stars on an olive branch, a general has 3 stars on an olive branch, and a colonel has a two-bar and 4 stars, which is equivalent to a brigadier general abroad.

Five golden stars That's the marshal level.

QQ A star is 21131 levels, and the algorithm of QQ grades is as follows:

1. The QQ level is displayed by four logos 5261 diagrams, from low to 4102 high, they are stars, 1653 moon, sun, crown, and the first is the star;

A star is equal to a moon, 4 moons are equal to a sun, and 4 suns are equal to a crown;

1 star is 1, 1 moon is 4, 1 sun is 16, and 1 crown is 64;

4. At present, there is no maximum level limit for QQ software, and at present, it can display up to 4 crowns on the client, that is, 256 levels.

Extended Information:QQ Upgrade Method:

1. Basic active acceleration:

2. Level doubling acceleration:

Ordinary member multiplier acceleration; Super Membership Multiplier Acceleration.

3. Service acceleration:

Install and use Tencent PC Manager for more than 30 minutes, which can speed up the day; QQ mobile version game center and QQ friends play games, speed up the day; QQ wallet payment is the first payment per day, remember that it is the first time, acceleration days (limited to 6 times per month); Light up the QQ medal wall icon to accelerate the sky; Mobile version QQ** Listen to the song for 60 minutes, accelerate the day; QQ wallet check-in card users sign in every day, accelerating the day.

Note: Current acceleration days = basic active days * level doubling + service acceleration days.

In the sky, the brightness of the stars is different, so the ancient Greek astronomer Hipparchus divided the stars that can be seen with the naked eye into 6 equal levels, the brightest star is the first magnitude star, and so on, the barely visible star is the sixth magnitude star.

Later, the British astronomer Herschel discovered that a first-magnitude star is about 100 times brighter than a sixth-magnitude star, which means that the brightness of a star is twice that of a second-magnitude star.

In order to compare the true luminous power of stars, astronomers use absolute magnitude to express the luminosity of stars, divided into the following categories:

1. Visual magnitude MV is the magnitude measured by the human eye.

The Harvard University Observatory in the United States prescribes the mv=+ magnitude of the constellation Ursa Minor, which determines the zero point of visual magnitude. For example, the visual magnitude of the Sun is equal; Sirius's visual magnitude is equal. A star with a visual magnitude of 1 has approximately equal illuminance to Lux on the ground.

2. Photographic magnitude MP is the magnitude determined with blue-sensitive photographic negatives.

The zero point of the International Photographic Magnitude IPG is defined as such that the average IPG of an A0 type star with visual magnitude between equals is MV.

3. The MPV and the IPV of the international imitation star are determined by positive color negatives and yellow filters.

Its spectroscopic properties are similar to those of the human eye, effectively replacing visual magnitude.

4. Photomagnitude is the magnitude determined by a photomultiplier tube.

The most commonly used optoelectronic magnitude system is the UBV metering system. u is the ultraviolet magnitude, b is the blue magnitude, and v is the yellow magnitude (similar to the visual magnitude).

5. Thermal magnitude MBOL is a magnitude that characterizes the total amount of radiation emitted by a celestial body in the entire electromagnetic band.

It cannot be determined directly by observation, but can only be obtained by combining the magnitude of multichromatic photometry with theoretical calculations. With the development of photometry technology in various bands, especially extraatmospheric observations, the accuracy of determining thermal magnitude is getting higher and higher.

The stars are level 1, and the detailed description of the QQ level is as follows:

The first appearance of the QQ grade is stars, 4 stars are equal to a moon, and 4 moons are equal to a sun. 4 suns equal one crown.

The specific levels are: 1 star is level 1, 1 moon is level 4, 1 sun is level 16, and 1 crown is level 64.

Attached is the level calculation table:

QQ is divided into several stars, and then when the stars reach a certain number, they will become the sun.

Of course, level 1, level 1, level 4, level 16, and so on.

A star is a magnitude 1, a moon is a magnitude 4, and a sun is a magnitude 16.

One star level 1, 4 stars level 4 equals a moon, 4 moons level 16 equals a sun. One star level 1.

A star is level 1, 2 is level 2, a moon is level 4, 2 is level 8, and a sun is level 16 and 2 is level 32.