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astronomy

Red star

Red star is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Red star rather than just read about it. In short: A red star, five-pointed and filled, is a symbol that has often historically been associated with communist ideology, particularly in combination with the hammer and sickle, but is also used as a purely socialist symbol in the 21st century. It has been widely used in flags, state emblems, monuments, ornaments, and logos.

Red star — main illustration
Red star — illustration

Key takeaways

  • Red star belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Red star to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Red star from memory before moving on to harder problems.

Reference excerpt

A red star, five-pointed and filled, is a symbol that has often historically been associated with communist ideology, particularly in combination with the hammer and sickle, but is also used as a purely socialist symbol in the 21st century. It has been widely used in flags, state emblems, monuments, ornaments, and logos. A golden star or yellow star is also a closely-associated symbol to the red star in the context of contemporary China and Vietnam, similarly representing communism and socialism. Some former Warsaw Pact nations have passed laws banning it, describing it as a symbol of far-left totalitarian ideology. The red star has also been used in a non-communist context and before the emergence of this movement, in symbols of countries and states since the 19th century. It appears for example on the flags of New Zealand and the U.S. state of California. The red star has also been used as logo by private agencies and corporations, such as the oil brand Texaco and the beer Heineken.

History

The star's origins as a symbol of communist mass movements dates from the time of the Bolshevik Revolution and the Russian Civil War, but the precise first use remains unknown. The red star as a symbol of the Red Army was proposed by the Military Collegium for the organization of the Red Army and the creator of the Red Star emblem was the Bolshevik commander of the Petrograd Military District, Konstantin Eremeev. On the other hand, one account of the symbol's origin traces its roots to the Moscow troop garrison toward the end of World War I. At this time, many troops were fleeing from the Austrian and German fronts, joining the local Moscow garrison upon their arrival in the city. To distinguish the Moscow troops from the influx of retreating front-liners, officers gave out tin stars to the Moscow garrison soldiers to wear on their hats. When those troops joined the Red Army and the Bolsheviks they painted their tin stars red, the color of socialism, thus creating the original red star. The red star was used in communist media as early as in 1908 with the publication of the novel Red Star by Bolshevik revolutionary Alexander Bogdanov, which describes a technologically advanced communist civilization on Mars. Another claimed origin for the red star relates to an alleged encounter between Leon Trotsky and Nikolai Krylenko. Krylenko, an Esperantist, wore a green-star lapel badge; Trotsky inquired as to its meaning and received an explanation that each arm of the star represented one of the five traditional continents. On hearing that, Trotsky specified that soldiers of the Red Army should wear a similar red star. One interpretation sees the five points as representing the five fingers of the worker's hand, as well as the five populated continents (counting the Americas as one). A lesser-known suggestion is that in communist symbolism, the five points on the star were intended to represent the five social groups that would lead Russia to communism: the youth, the military, the industrial labourers, the agricultural workers or peasantry and the intelligentsia. In Soviet heraldry, the red star symbolized the Red Army and military service, as opposed to the hammer and sickle, which symbolized peaceful labour. Regardless of the star's exact origin, it was incorporated into the Red Army's uniforms and heraldry as early as 1918.

Shortly before the founding of the Soviet Union, in mid-March 1916 the U.S. Army Signal Corps' aviation section used the red star for the national insignia for U.S. aircraft on the aircraft of the Signal Corps' 1st Aero Squadron during the Pancho Villa Expedition to apprehend the Mexican revolutionary Pancho Villa.

Use in the USSR and its constituent republics The symbol became one of the most prominent of the Soviet Union, adorning nearly all official buildings, awards and insignia. Sometimes the hammer and sickle appeared inside or below the star. In 1930 the Soviet Union established the Order of the Red Star and awarded its insignia to Red Army and Soviet Navy personnel for "exceptional service in the cause of the defense of the Soviet Union in both war and peace". The Soviet and Russian Federation military newspaper bore and bears the name Red Star (Russian: Krasnaya Zvezda).

As a holiday ornament During the 1930s, Soviet publications encouraged the practice of decorating a New Year's tree, known as a yolka (Russian: Ёлка). These trees were often decorated with a red star, a practice that has continued in Russia since the 1991 dissolution of the Soviet Union.

Gallery of the heraldry of Soviet republics

Gallery of Soviet flags

Use in other socialist countries Following its adoption as an emblem of the Soviet Union, the red star became a symbol for communism around the world. Several Communist states subsequently adopted the red star symbol, often placing it on their respective flags and coats of arms – for example on the flag of the Socialist Federal Republic of Yugoslavia. Separatist and socialist movements also sometimes adopted the red star, as on the Estelada flag in the Catalan countries.

Eastern Bloc The red star became a common element of the flags and heraldry of socialist states in the Eastern Bloc, appearing in heraldry for virtually all of the countries, and on the flags of Bulgaria, Hungary, Romania, and Albania. From 1991 to 1995, Belarus dropped its Soviet-style emblem in favor of an emblem featuring the Pahonia; the Soviet-era heraldry was re-adopted in 1995, and continues to be used today with minor modifications in 2012 and 2020.

Yugoslavia In former Yugoslavia the red star served not only a communist symbol, but also as a more generic symbol of resistance against Fascism and the Nazi occupation of Yugoslavia, as well as of opposition to its associated ethnic policies. Tito's partisans wore the red star as an identification symbol during World War II.

Asia As communist movements spread across Asia, some entities used a red star, while others used a yellow star (often on a red field) with the same symbolism. The Far Eastern Republic of 1920 to 1922 used a yellow star on its military uniforms, and the flag of the People's Republic of China has five yellow stars on a red field. The flag of Vietnam and its associated symbols also have a yellow star on a red field. Examples of communes and villages in China named after the red star include Hongxing Village in Huilong Township, Hubei, China and Kizilto in Xinjiang (named Hongxing Commune during the Cultural Revolution).

… excerpt ends here. Continue reading the full article.

Illustrations

Red star: A red five-pointed star
A red five-pointed star
Red star: A New Year tree with a red star in front of a church cupola in Volokolamsk, Russia, 2010.
A New Year tree with a red star in front of a church cupola in Volokolamsk, Russia, 2010.
Red star: Red Star (1908)
Red Star (1908)
Red star: U.S. Army Signal Corps Curtiss JN-3 biplanes with red star insignia, 1915
U.S. Army Signal Corps Curtiss JN-3 biplanes with red star insignia, 1915
Red star illustration

Worked examples

Example 1 — a first encounter with Red star

Start with the simplest possible case. Write down what Red star claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Red star before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Red star ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Red star

In research
Red star appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Red star in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Red star is common in secondary-school and first-year university syllabi. It links to neighbouring topics Article 10 of the European Convention on Human Rights, Heraldic charges, Military symbols, so understanding it makes those chapters shorter.
In everyday life
Look for Red star outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Red star in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Red star means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Red star out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Red star in simple terms?

A red star, five-pointed and filled, is a symbol that has often historically been associated with communist ideology, particularly in combination with the hammer and sickle, but is also used as a purely socialist symbol in the 21st century. It has been widely used in flags, state emblems, monuments…

Why does Red star matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Red star?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Red star.

Tags

  • Article 10 of the European Convention on Human Rights
  • Heraldic charges
  • Military symbols
  • National symbols of Belarus
  • National symbols of Russia
  • National symbols of the Soviet Union
  • Red symbols
  • Socialist symbols
  • Star symbols
  • Symbols of communism

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