Lagrange point

English

Lagrange points (green), primary central object (yellow) and secondary orbiting object (blue)

Alternative forms

(astrophysics): Lagrangian point

Etymology

60-degree separation of L4 and L5 Lagrange points

Named after Joseph Louis Lagrange, who calculated points L4 and L5

Noun

Lagrange point (plural Lagrange points)

(astrophysics) a point in an the orbital configuration of a two-body system where a small object affected only by gravity can theoretically be stationary relative to the two larger objects
- 2013 July 28, Megan Gannon, “Spacecraft Sees Giant 'Hole' In the Sun”, in news.yahoo.com‎, retrieved 2013-07-29:
  
  The $1.27-billion (1 billion euros) SOHO satellite was launched in 1995 and is flying a joint mission between NASA and the European Space Agency (ESA). It watches solar activity from an orbit about the Lagrange Point 1, a gravitationally stable spot between Earth and the sun that is about 932,000 miles (1.5 million kilometers) from our planet.

Translations

a point in an the orbital configuration

Arabic: نُقْطَة لَاغْرَانْج‎ f (nuqṭat laḡranj)
Chinese:
Mandarin: 拉格朗日點, 拉格朗日点 (Lāgélǎngrì diǎn)
French: point de Lagrange (fr) m
German: Lagrange-Punkt m
Japanese: ラグランジュ点 (Raguranju-ten)

Korean: 라그랑주점 (Rageurangju-jeom)
Persian: نقطه لاگرانژی‎ (noqte-ye lâgrânži)
Russian: то́чка Лагра́нжа f (tóčka Lagránža)
Spanish: punto de Lagrange m
Vietnamese: điểm Lagrange

Synonyms

(astrophysics): L-point

Hyponyms

(astrophysics): Trojan point

Hypernyms

(astrophysics): libration point

Derived terms

(astrophysics): Lagrangian, Lagrangian asteroid, Lagrangian moon, Lagrangian planet

Related terms

(astrophysics): L1, L2, L3, L4, L5

See also

(astrophysics): barycenter

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