What does Proxima Centauri mean?

Definitions for Proxima Centauri
ˈprɒk sə məprox·i·ma cen·tau·ri

This dictionary definitions page includes all the possible meanings, example usage and translations of the word Proxima Centauri.

Princeton's WordNet

  1. Proxima, Proxima Centaurinoun

    the nearest star to the sun; distance: 4.3 light years


  1. Proxima Centaurinoun

    A red dwarf star, part of the Alpha Centauri system. It is the nearest star to Earth's solar system.

  2. Etymology: From proximus and centaurus


  1. proxima centauri

    Proxima Centauri is a small, red-dwarf star located in the constellation of Centaurus. It is the closest known star to the Sun, lying approximately 4.24 light years away. Despite its close proximity, it is not visible to the naked eye due to its low luminosity. Proxima Centauri is also known to have an exoplanet orbiting it, named Proxima Centauri b, which is located within its habitable zone.


  1. Proxima Centauri

    Proxima Centauri is a red dwarf about 4.24 light-years distant inside the G-cloud in the constellation of Centaurus. It was discovered in 1915 by Scottish astronomer Robert Innes, the Director of the Union Observatory in South Africa, and is the nearest known star to the Sun, although it is too faint to be seen with the naked eye. Its distance to the second- and third-nearest stars, which form the bright binary Alpha Centauri, is 0.237 ± 0.011 ly. Proxima Centauri is very likely part of a triple star system with Alpha Centauri A and B. Because of the proximity of this star, its distance from the Sun and angular diameter can be measured directly, from which it can be determined that its diameter is about one-seventh of that of the Sun. Proxima Centauri's mass is about an eighth of the Sun's, and its average density is about 40 times that of the Sun. Although it has a very low average luminosity, Proxima is a flare star that undergoes random dramatic increases in brightness because of magnetic activity. The star's magnetic field is created by convection throughout the stellar body, and the resulting flare activity generates a total X-ray emission similar to that produced by the Sun. The mixing of the fuel at Proxima Centauri's core through convection and the star's relatively low energy-production rate suggest that it will be a main-sequence star for another four trillion years, or nearly 300 times the current age of the universe.

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How to pronounce Proxima Centauri?

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  1. Chaldean Numerology

    The numerical value of Proxima Centauri in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of Proxima Centauri in Pythagorean Numerology is: 7

Examples of Proxima Centauri in a Sentence

  1. Meredith MacGregor:

    If there was life on the planet nearest to Proxima Centauri, it would have to look very different than anything on Earth, a human being on this planet would have a bad time.

  2. Meredith MacGregor:

    Proxima Centauri's planets are getting hit by something like this not once in a century, but at least once a day if not several times a day.

  3. Alycia Weinberger:

    Proxima Centauri is of similar age to the Sun, so Proxima Centauri's been blasting Proxima Centauri planets with high energy flares for billions of years, studying these extreme flares with multiple observatories lets us understand what Proxima Centauri planets have endured and how they might have changed.

  4. Meredith MacGregor:

    Proxima Centauri b went from normal to 14,000 times brighter when seen in ultraviolet wavelengths over the span of a few seconds.

Translations for Proxima Centauri

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    the quality of being impenetrable (by people or light or missiles etc.)
    • A. squint-eye
    • B. imperviousness
    • C. taper
    • D. sundog

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