Eclipsing Binary

Part of Speech

Noun

Pronunciation

/ɪˈklɪpsɪŋ ˈbaɪ.nɛr.i/ (American English), /ɪˈklɪpsɪŋ ˈbaɪ.nər.i/ (British English)

Definitions

1. A binary star system in which the two stars periodically pass in front of each other, causing variations in brightness as seen from Earth.
2. An astronomical system where one star eclipses the other, leading to detectable dips in luminosity.

Usage Examples

• "The Algol system is one of the most famous eclipsing binary stars observed by astronomers."
• "Scientists use light curves to study eclipsing binary systems and determine their orbital characteristics."
• "An eclipsing binary provides valuable insights into stellar masses and sizes through its periodic dimming."

Etymology

Derived from the words eclipse (from Greek ekleipsis, meaning ‘abandonment or cessation’) and binary (from Latin binarius, meaning ‘consisting of two’). The term refers to a star system where two celestial bodies orbit each other and periodically eclipse one another.

Synonyms

• Occulting binary
• Variable star pair
• Light-variable binary

Antonyms

• Non-eclipsing binary
• Stable luminosity binary

Translations

Regional Pronunciation Variations

• British English: /ɪˈklɪpsɪŋ ˈbaɪ.nər.i/
• American English: /ɪˈklɪpsɪŋ ˈbaɪ.nɛr.i/
• Australian English: /ɪˈklɪpsɪŋ ˈbaɪ.nər.i/

Historical Usage

Eclipsing binaries have been observed since ancient times, but their significance was only understood in the 18th and 19th centuries. The discovery of Algol’s periodic dimming led to the realization that stars could orbit each other and eclipse one another.

Cultural Nuances

In some cultures, eclipsing stars were seen as celestial omens or symbolic representations of cosmic balance. The periodic disappearance and reappearance of light in these systems have inspired myths about cycles of renewal and transformation.

More Information

Eclipsing binaries play a crucial role in astrophysics, helping scientists measure stellar masses, radii, and orbits with precision. Observations of these systems contribute to understanding stellar evolution and the nature of exoplanetary systems.