File:The_sky_around_Alpha_Centauri_and_Proxima_Centauri_(eso1629i).jpg · Wikimedia Commons · See Wikimedia Commons
แอลฟาคนครึ่งม้า
Sign in to saveAlso known as Rigel Kent, Rigil Kentaurus, Toliman, Bungula, 2XMM J143933.0-605008, α Cen, α Centauri, LPM 534
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AI overview
Alpha Centauri is a system of three stars located in the constellation Centaurus, with one of them, Proxima Centauri, being the closest star to Earth. It matters because its proximity makes it a key target for scientific study and a natural focus for discussions about potential future human space exploration.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Demonym
- Alpha Centaurian
- Distance from Earth
- 1.346
- Radius
- 1.227
- Mass
- 1.1
- Image
- Best image of Alpha Centauri A and B.jpg
Show 19 more facts
- IPA transcription
- ˈalfa ʦɛnˈtaʊ̯ʀi
- Commons category
- Alpha Centauri
- catalog code
- PM 14362-6038
- parallax
- 742
- right ascension component of proper motion
- -3600
- color index
- 0.23
- Commons gallery
- Alpha Centauri
- orbital eccentricity
- 0.516
- radial velocity
- -22.3
- apparent magnitude
- 0.4
- absolute magnitude
- 4.385
- spectral class
- G2V+K1V
- metallicity
- 0.25
- right ascension
- 219.873833060
- declination
- -60.832221940
- effective temperature
- 5781
- surface gravity
- 18000
- luminosity
- 1.519
- declination component of proper motion
- 705
Sources (9)
via Wikidata · CC0
Gallery (12)
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Connections
minute and second of arc
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star catalogue
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year
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Ptolemy
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Oort cloud
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Crux
Entity
Centaurus
Entity
astrometry
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apsis
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orbital inclination
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circumstellar habitable zone
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asterism
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orbital eccentricity
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epoch
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star system
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stellar classification
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list of nearest stars
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The Astrophysical Journal
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flare star
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Durchmusterung
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Categories
Alpha CentauriAstronomical objects discovered in 1689Astronomical objects known since antiquityBayer objectsBrightest starsBright Star Catalogue objectsCentaurusDurchmusterung objectsGliese and GJ objectsG-type main-sequence starsHenry Draper Catalogue objectsHipparcos objectsHypothetical planetary systemsK-type main-sequence starsLucidaeMaunder MinimumM-type main-sequence starsPopulation I starsSolar analogsSource attributionStars with proper namesTriple star systems