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Star in the constellation Centaurus
Sigma Centauri is a solitary star in the southern constellation of Centaurus. Its name is a Bayer designation that is Latinized from σ Centauri, and abbreviated
Sigma_Centauri
Star in the constellation Centaurus
Theta Centauri, Zeta Centauri, Eta Centauri, 2 Centauri, HD 117440, Xi¹ Centauri, Gamma Centauri, Tau Centauri, D Centauri and Sigma Centauri. Consequently
Theta_Centauri
represented in the Babylon 5 universe: Humans (also known as "Earthers"), Narn, Centauri, Minbari and Vorlons; and several dozen less powerful ones. A number of
List_of_Babylon_5_characters
Nearest OB association to Earth
association; only a few stars are exceptions, such as Alpha Centauri, Gacrux, Theta Centauri and Iota Centauri, which appear in this region of the sky only due to
Scorpius–Centaurus association
Scorpius–Centaurus_association
Minbari. Meanwhile, tensions between the Centauri Republic, an empire in decline, and the Narn Regime, a former Centauri dominion which successfully rebelled
List_of_Babylon_5_episodes
Alien civilizations in the TV show Babylon 5
represented on the fictional TV show Babylon 5: humans, the Narn, the Centauri, the Minbari and the Vorlons; and several dozen less powerful ones. A number
Civilizations_in_Babylon_5
Imaginary sky rotation points
located from the Southern Cross (Crux) and its two "pointer" stars α Centauri and β Centauri. Draw an imaginary line from γ Crucis to α Crucis—the two stars
Celestial_pole
Southern half of the celestial sphere
the Sun and is 8.6 light-years away. Canopus and the next fixed star α Centauri, 4.2 light-years away, are also located in the Southern Sky, having declinations
Southern_celestial_hemisphere
01 Mirach Star 2.05 Theta Centauri (Menkent) Star 2.06 2.02 Alpheratz Binary star system 2.06 2.04 Saiph Star 2.067 Sigma Sagittarii (Nunki) Star 2.07
List of brightest natural objects in the sky
List_of_brightest_natural_objects_in_the_sky
Type of star
following are examples: HD 37017 A HD 144941 HR 7355 Sigma Lupi V2052 Ophiuchi V761 Centauri (a Centauri) is well-known for both the variability of its brightness
Helium-weak_star
Script used to write the Greek language
the brightest star in the constellation of Centaurus is known as Alpha Centauri. For historical reasons, the Greek designations of some constellations
Greek_alphabet
as well as 4 sub-brown dwarfs. The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from
List_of_nearest_stars
Stellar classification
sufficient time to leave the main sequence. Well-known examples include Alpha Centauri B (K1 V), Epsilon Indi (K5 V) and Epsilon Eridani (K2 V). There are subdwarf
K-type_main-sequence_star
Pattern of stars recognized on Earth's night sky
objects), and with the first-magnitude stars Alpha Centauri (the closest star to the Sun) and Beta Centauri pointing at the cross, distinguishing the cross
Asterism_(astronomy)
Constellation straddling the celestial equator
observed in skies south of 40°N latitude, found by using 1, 2, 3, and 4 Centauri as guide stars. It has been host to six supernovae. Large amateur telescopes
Hydra_(constellation)
Non-bank financial institution
depending upon the quality of its asset portfolio. Subsequent SIVs, such as Centauri and Dorada, raised the leverage to around 20 times. Typically banks are
Structured_investment_vehicle
interstellar medium. The nearest known star is Proxima Centauri at 269,000 AU (4.25 ly), followed by Alpha Centauri at about 4.35 light years. Oort cloud comets
List of Solar System objects by greatest aphelion
List_of_Solar_System_objects_by_greatest_aphelion
Gas giant orbiting Kepler-1625
differing conclusion. Kepler-1708b PDS 70 2MASS J11193254–1137466 AB V1400 Centauri Teachey, Alex; et al. (3 October 2018). "Evidence for a large exomoon orbiting
Kepler-1625b
Hypothetical FTL transportation by warping space
thereby rendering possible interstellar flight, such as a visit to Proxima Centauri within a few days. The Alcubierre metric defines the warp-drive spacetime
Alcubierre_drive
Red dwarf star in the constellation Cetus
a spectral type of M5.5V, this star is a red dwarf similar to Proxima Centauri. It has 12% the mass and 14% the radius of the Sun, and a temperature of
GJ_1002
Brightest star in the constellation Aquila
2013-11-21. Gilster, Paul (2010-09-01). "Into the Interstellar Void". Centauri Dreams. Retrieved 2017-03-26. Robrade, J.; Schmitt, J. H. M. M. (April
Altair
American astronaut, doctor and engineer (born 1956)
May 15, 2017. Fitzpatrick, Andy (March 25, 2017). "Blaze a Path to Alpha Centauri". Battle Creek Enquirer. pp. A3. Archived from the original on September
Mae_Jemison
of eclipsing binaries are Epsilon Aurigae (Almaaz), VV Cephei, and V766 Centauri (HR 5171). Angular diameter measurements can be inconsistent because the
List_of_largest_stars
Space propulsion method using Sun radiation
Centauri system, the ISV Venture Star, uses solar sails as a means of propulsion to accelerate the vehicle away from the Earth towards Alpha Centauri
Solar_sail
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Lists_of_stars
Proposed lightweight radiator
a 2 ) σ F T 4 {\displaystyle {\dot {q}}=(4\pi a^{2})\sigma FT^{4}} where σ {\displaystyle \sigma } is the Stefan–Boltzmann constant, q ˙ {\displaystyle
Liquid_droplet_radiator
Star naming system
in southern constellations have uppercase letter designations, like B Centauri and G Scorpii. These letters were assigned by later astronomers, notably
Bayer_designation
Systematic designations to unambiguously identify astronomical objects
are used, such as for A Centauri (A Cen), D Centauri (D Cen), G Scorpii (G Sco), P Cygni (P Cyg), b Sagittarii (b Sgr), d Centauri (d Cen) and s Carinae
Astronomical naming conventions
Astronomical_naming_conventions
Nu Fornacis 370 ± 10 Fornax B9.5IIIspSi 4.69 H Centauri A 370 ± 10 Centaurus B7V 5.163 B B8.5V C B Sigma Hydrae (Minchir) 370 ± 10 Hydra K2 III 4.48 Nu
List of star systems within 350–400 light-years
List_of_star_systems_within_350–400_light-years
Gas giant exoplanet with a potential exomoon
additional observations. Kepler-1625b 2MASS J11193254–1137466 AB PDS 70 V1400 Centauri Luminosity calculated from the inverse of log 10 ( L ∗ ) = 0.182 ± 0
Kepler-1708b
Class of black holes with a mass range of 100 to 100000 solar masses
seven fast-moving stars from the center of the globular cluster Omega Centauri, finding that these stars were consistent with being bound to an intermediate-mass
Intermediate-mass_black_hole
Propagation of information or matter faster than the speed of light
Centauri, the nearest star outside the Solar System, is about four and a half light-years away. In this frame of reference, in which Proxima Centauri
Faster-than-light
Chemical element with atomic number 3 (Li)
1007/s12011-014-0210-6. ISSN 1559-0720. PMID 25556933. "Lithium 265969". Sigma-Aldrich. Archived from the original on 13 March 2021. Retrieved 1 October
Lithium
Journal Supplement 121, #1 (March 1999), pp. 1–130. CDS ID III/210. V886 Centauri, query result in SIMBAD. Accessed on line April 1, 2008. "SIMBAD query
List of star systems within 50–55 light-years
List_of_star_systems_within_50–55_light-years
Kervella, P.; Thévenin, F.; Lovis, C. (2017-02-01). "Proxima's orbit around α Centauri". Astronomy and Astrophysics. 598: L7. arXiv:1611.03495. Bibcode:2017A&A
List of nearest stars by spectral type
List_of_nearest_stars_by_spectral_type
accuracy smaller than the width of a human hair! (that is, to Proxima Centauri at 4.0208×1013 km). "The Nobel Prize in Physics 2017". Nobel Foundation
History_of_black_hole_physics
Substellar object
the Sun. Luhman 16 is the third closest system to the Sun after Alpha Centauri and Barnard's Star. In the 1960s Shiv Kumar theorized the existence of
Brown_dwarf
Series of military SF short story collections
Kzinti invaded and occupied the human colony of Wunderland, in the Alpha Centauri system, as a staging point for an attack on Earth. Human ships attempting
Man–Kzin_Wars
Type of variable star
are some of the brightest stars in the sky, such as Beta Crucis and Beta Centauri; Spica is also classified as a Beta Cephei variable but mysteriously stopped
Beta_Cephei_variable
Star that is particularly similar to the Sun
Williams, D.R. (2004). "Sun Fact Sheet". NASA. Retrieved 2009-06-23. Alpha Centauri A at SIMBAD - Ids - Bibliography - Image. Van Leeuwen, F. (2007). "Validation
Solar_analog
Red dwarf star in the constellation Carina
star matches a spectral class of M5V, similar to the class of Proxima Centauri. This star has an estimated 0.109 times the Sun's mass, 0.126 times the
LHS_288
Constellations that are no longer widely recognised
Turris Eiffel Turris Eiffel Tower 1922 Ezequiel de Moraes Leme η Centauri, κ Centauri, β Lupi, δ Lupi, and ε Lupi Between Centaurus and Lupus Testudo Testudinis
Former_constellations
(J2000) Distance (Light-years) Apparent Absolute Sun G2V −26.74 4.80 — — 0 α Centauri A (Rigil Kentaurus) G2V −0.01 4.34 14h 39m 36.50s −60° 50′ 02.3″ 4.34
List_of_nearest_bright_stars
Brown dwarf in the constellation Reticulum
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
WISE_0350−5658
Massive Structure in Our Universe". sciencealert. "Black hole found in Omega Centauri". United Press International. 10 April 2008. Archived from the original
List_of_galaxies
Figure on a compass, map, nautical chart
Cross had to do for the Southern Hemisphere, as the southern pole star, Sigma Octantis, is too dim to be easily seen from Earth with the naked eye. The
Compass_rose
Group of stars on the celestial sphere
triangulated using the constellation Crux as well as the stars Alpha and Beta Centauri (about 30° counterclockwise from Crux) of the constellation Centaurus (arching
Constellation
Meaning Arabic name Scientific star name Hadar Ḥaḍār Settlement حضار Beta Centauri Hamal Rā's al-Ḥamal (head of) the Ram رأس الحمل Alpha Arietis Heka al-Haqʿah
List_of_Arabic_star_names
Planet not gravitationally bound to a star
about Earth being artificially moved from the Solar System to the Alpha Centauri system Gemini Home Entertainment (2019–present) – horror anthology web
Rogue_planet
Binary star system in the constellation Cassiopeia
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Eta_Cassiopeiae
Colleges and universities in the Philippines
Systems College of Rizal Morong, Rizal not applicable Regulated Alpha Centauri Educational System Lucena not applicable Regulated Asian School of Hospitality
List of colleges and universities in the Philippines
List_of_colleges_and_universities_in_the_Philippines
Brightest star in the constellation of Carina
observers in his 1592 work Tractatus de Globis, along with Achernar and Alpha Centauri, noting: "Now, therefore, there are but three Stars of the first magnitude
Canopus
Binary star system in the constellation of Sagittarius
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
HR_7703
G5 III 3.38 + 7.5 B F0 V C F5 HD 166348 130 Corona Australis* K6V Gamma Centauri (Muhlifain) A 130 ± 1 Centaurus 12h 41m 31.04008s −48° 57′ 35.5375″ A1IV
List of star systems within 100–150 light-years
List_of_star_systems_within_100–150_light-years
Monocerotis 450 ± 20 Monoceros K4III Chi Carinae 450 ± 30 Carina B3IVp V1400 Centauri 450.8 ± 0.9 Centaurus K5 IVe Li 12.2–15.6 HD 100655 (Formosa) 451 ± 2 G9
List of star systems within 450–500 light-years
List_of_star_systems_within_450–500_light-years
Nearby red dwarf star in the constellation Orion
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_205
Super-Earth orbiting Gliese 876
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_876_d
American physicist and nanophotonics researcher
light-driven nanocrafts. This is work towards the first launch to Alpha Centauri, led by a consortium of scientists such as Steven Chu, Mae Jemison, and
Michelle_Povinelli
Red dwarf star in the constellation Norma
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
2MASS_J15404342−5101357
Continuous band of stars that appears on plots of stellar color versus brightness
the Stefan–Boltzmann law: L = 4 π σ R 2 T eff 4 {\displaystyle L=4\pi \sigma R^{2}T_{\text{eff}}^{4}} where σ is the Stefan–Boltzmann constant. As the
Main_sequence
"Hidden Companions to Intermediate-mass Stars. XXVI. Uncovering Nunki = Sigma Sagittarii as a 6.5 M⊙ + 6.3 M⊙, 0.60 au Binary". Research Notes of the
List_of_supernova_candidates
with Antrix Corp Ltd, the commercial arm of the ISRO. 239 S1-4 444 kg 240 Centauri -1 Australia 29 November 2018 10 kg PSLV-CA C43 - 241 Kepler (CASE) Canada
List of foreign satellites launched by India
List_of_foreign_satellites_launched_by_India
Star system in the constellation Cetus
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
GJ_1005
M type star in the constellation Leo
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
AD_Leonis
2015 detection made by LIGO interferometers
human hair ~ 0.02–0.04 millimeter (0.02–0.04×10−3 m); distance to Proxima Centauri ~ 4.423 light-years (4.184×1016 m); ratio of hair/distance to star = 5–10×10−22
First observation of gravitational waves
First_observation_of_gravitational_waves
Super-Jupiter exoplanet orbiting 38 Virginis
L = 4 π R 2 σ T e f f 4 {\displaystyle {\begin{smallmatrix}L=4\pi R^{2}\sigma T_{\rm {eff}}^{4}\end{smallmatrix}}} , where L {\displaystyle
38_Virginis_b
7–9 Sid Meier's Alpha Centauri Aspyr Media 1999 Turn-based strategy Commercial 7.6–9.x–OS 10–10.6.8 Sid Meier's Alpha Centauri/Alien Crossfire Aspyr Media
List_of_Mac_games
± 0.007 11.32 M4.0V b,c (unconfirmed) 557 Sigma Boötis Boötes 51.39 ± 0.09 4.46 F4VkF2mF1 559 Alpha Centauri (Rigil Kentaurus & Toliman) Centaurus 4.344
List of Gliese and GJ objects (1-1000)
List_of_Gliese_and_GJ_objects_(1-1000)
Astronomical catalogue that lists stars and their positions in the sky
case of the constellation in which they are located; examples are Alpha Centauri or Gamma Cygni. The major problem with Bayer's naming system was the number
Star_catalogue
Nearest star in the constellation Orion
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
GJ_3379
Branch of astronomy that uses X-ray observation
confinement unless it was a free-flowing coronal wind. In 1977 Proxima Centauri is discovered to be emitting high-energy radiation in the XUV. In 1978
X-ray_astronomy
Constellation in the southern celestial hemisphere
Multiwavelength Long-Term Photometry and Spectroscopy of QS Telescopii, V834 Centauri, and BL Hydri". Publications of the Astronomical Society of the Pacific
Telescopium
Star in the constellation Ursa Major
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Groombridge_1618
Star in the constellation Libra
slightly more than twice the distance of the nearest known star system Alpha Centauri. This view existed because of a very rough preliminary parallax with a
WISE_1541−2250
Gas giant orbiting Gliese 876
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_876_c
2013 CI Games CI Games Alien Shooter 2003 Sigma Team Sigma Team Alien Shooter: Vengeance 2007 Sigma Team Sigma Team Alien Spidy 2013 Enigma Software Productions
Index_of_Windows_games_(A)
Star in the constellation Musca
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_440
Star in the constellation Eridanus
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
GJ_3323
Spanish composer
per a piano – Lichtzwang; Vestigios; L’Aube Assaillie, Ensemble Proxima Centauri, Utopia Ensemble, Quatuor Aker, Duo Nataraya, Imma Santacreu, Laura Capsir
Hèctor_Parra
Very small red dwarf star in the constellation Aquila
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
VB_10
Star in the constellation Aquarius
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_876
exoplanet is discovered orbiting Earth's closest stellar neighbour, Alpha Centauri. The new planet is believed to be too hot to sustain life, but there is
2012_in_science
Kervella, P.; Thévenin, F.; Lovis, C. (2017). "Proxima's orbit around α Centauri". Astronomy & Astrophysics. 598: L7. arXiv:1611.03495. Bibcode:2017A&A
List_of_smallest_known_stars
Star in the constellation Orion
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Ross_47
Star in the constellation Camelopardalis
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Stein_2051
Exoplanet orbiting the star Gliese 876
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_876_e
American gay collegiate fraternity
References Alpha Alpha Alumni Association Tempe, Arizona Active Alpha Centauri Alumni Association Washington, D.C. Active Alpha Psi Alumni Association
Delta_Lambda_Phi
Ultracool dwarf
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
LSR_J1835+3259
Star system in the constellation of Indus
1051/0004-6361:20011815. S2CID 16982360. Eggen, O. J. (1971). "The zeta Herculis, sigma Puppis, ε Indi, and eta Cephei Groups of Old Disk Population Stars". Publications
Epsilon_Indi
Extrasolar planet orbiting Gliese 876
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_876_b
Generation Ambassador Kosh – Vorlon, Babylon 5 Ambassador Londo Mollari – Centauri Republic, Babylon 5 Ambassador Mourain (Ben Kingsley) – United States,
List_of_fictional_politicians
Star in the constellation Pisces
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_908
System of two stars in the constellation Antlia
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
2MASS_J09393548−2448279
Likely extrasolar planet in the constellation Hydra
L = 4 π R 2 σ T e f f 4 {\displaystyle {\begin{smallmatrix}L=4\pi R^{2}\sigma T_{\rm {eff}}^{4}\end{smallmatrix}}} , where L {\displaystyle
TW_Hydrae_b
Star in the constellation Scorpius
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
Gliese_682
American astronomer
from the mountain". In March 1962, Bidelman used three peculiar stars, 3 Centauri, κ Cancri and 112 Herculis, to make the first certain identification of
William_P._Bidelman
NASA satellite of the Explorer program
A, which is a supernova remnant The Rho Ophiuchi cloud complex Lambda Centauri nebula, a star-forming region in the Milky Way The Helix Nebula, a planetary
Wide-field Infrared Survey Explorer
Wide-field_Infrared_Survey_Explorer
Brown dwarf star in the constellation Hydra
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
2MASS_J11145133−2618235
Brown dwarf star in the constellation Eridanus
Solar System Alpha Centauri (Rigil Kentaurus) (4.3441±0.0022 ly) K-type main-sequence star B (Toliman) red dwarf C (Proxima Centauri) (4.2465 ± 0.0003
2MASS_J04151954−0935066
(Romik) 1983 Romik Atomic Protector 1983 Optima, Micro User Attack On Alpha Centauri 1983 Software Invasion Auf Wiedersehen Pet 1984 Tynesoft Aviator 1983 Acornsoft
List_of_Acorn_Electron_games
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