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Binary star system in the constellation Centaurus
Rho Centauri is a binary star system in the southern constellation of Centaurus. Its name is a Bayer designation that is Latinized from ρ Centauri, and
Rho_Centauri
Nearest star to the Solar System
Proxima Centauri is the nearest star to Earth after the Sun, located 4.25 light-years (1.3 parsecs) away in the southern constellation of Centaurus. Discovered
Proxima_Centauri
Nearest OB association to Earth
central group, Acrux, Mimosa, Delta, Epsilon and Rho Centauri. Other easily observed stars include Gamma Centauri, Alpha and Beta Muscae. However, some of these
Scorpius–Centaurus association
Scorpius–Centaurus_association
Star in the constellation Centaurus
V766 Centauri, based on Corben's 1966 catalogue. At the time, it was considered a "cool S Doradus variable", a class including stars such as Rho Cassiopeiae
HR_5171
Observation in physical cosmology
{\begin{aligned}\rho _{c}&={\frac {3H_{0}^{2}}{8\pi G}};\\\Omega _{m}&\equiv {\frac {\rho _{m_{0}}}{\rho _{c}}}={\frac {8\pi G}{3H_{0}^{2}}}\rho _{m_{0}};\end{aligned}}}
Hubble's_law
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
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)
How large a sphere or circle appears
angular diameter of the Sun is also about 250,000 times that of Alpha Centauri A (it has about the same diameter and the distance is 250,000 times as
Angular_diameter
Virginis Binary star system Slightly variable 3.386 3.38 Nu Centauri Binary star system 3.39 3.30 Rho Persei Star 3.39 Meissa Double star 3.408 Beta Pavonis
List of brightest natural objects in the sky
List_of_brightest_natural_objects_in_the_sky
Class of massive star with a spectral type of A to K
pseudo-photospheres. Rho Cassiopeiae V509 Cassiopeiae Omicron1 Centauri R Puppis IRC+10420 (V1302 Aql) IRAS 18357-0604 V766 Centauri (= HR 5171A) HD 179821
Yellow_hypergiant
Comparison of a wide range of lengths
Mm – average distance covered during life 215 Mm – diameter of Proxima Centauri, the nearest star to the Solar System 257 Mm – diameter of TrES-4, one
Orders_of_magnitude_(length)
Planetary system consisting of the Sun and objects orbiting it
called the Local Cloud. The closest star to the Solar System, Proxima Centauri, is 269,000 AU (4.25 ly) away. Both are within the Local Bubble, a relatively
Solar_System
Star at the centre of the Solar System
triple star system Alpha Centauri, which is about 4.4 light-years away and may be in the Local Bubble's G-Cloud. Alpha Centauri A and B are a closely tied
Sun
Constellation straddling the celestial equator
Solar System (the only stars closer are the Alpha Centauri binary star system and Proxima Centauri), lies in Ophiuchus. It is located to the left of β
Ophiuchus
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
Situation in which an astronomical object's orbital period matches its rotational period
with Earth is unknown. The exoplanet Proxima Centauri b discovered in 2016 which orbits around Proxima Centauri, is almost certainly tidally locked, expressing
Tidal_locking
Group of stars on the celestial sphere
the Llama are Alpha and Beta Centauri. Great Rift (astronomy) Cygnus Rift Serpens–Aquila Rift Dark Horse (astronomy) Rho Ophiuchi cloud complex Emu in
Constellation
Cosmological phenomenon
{\displaystyle \rho _{c}={\frac {3H^{2}}{8{\pi }G}}} and the density parameter Ω = ρ ρ c {\displaystyle \Omega ={\frac {\rho }{\rho _{c}}}} The Hubble
Accelerating expansion of the universe
Accelerating_expansion_of_the_universe
Centauri 450.8 ± 0.9 Centaurus K5 IVe Li 12.2–15.6 HD 100655 (Formosa) 451 ± 2 G9 III 6.45 Rho Ophiuchi A 451±12 Ophiuchus B2/3V 4.63 Member of Rho Ophiuchi
List of star systems within 450–500 light-years
List_of_star_systems_within_450–500_light-years
Rare star with tremendous luminosity and high rates of mass loss by stellar winds
18357-0604 IRC+10420 (V1302 Aql) Omicron1 Centauri Rho Cassiopeiae V382 Carinae V509 Cassiopeiae Phi Cassiopeiae V810 Centauri A V1427 Aquilae R Puppis RSGC1-F15
Hypergiant
Proposed spacecraft propulsion method
Alpha Centauri is a proton number density n i {\displaystyle n_{i}} of 0.1 protons per cm3 corresponding to ρ i m ≈ 10 − 22 {\displaystyle \rho _{im}\approx
Magnetic_sail
Time an astronomical object takes to complete one orbit around another object
3 π G ρ {\displaystyle T={\sqrt {{\frac {a^{3}}{r^{3}}}{\frac {3\pi }{G\rho }}}}} where: r is the sphere's radius a is the orbit's semi-major axis, G
Orbital_period
Multiple star system in the constellation Puppis
This is comparable to the ~15000 AU separation between Alpha Centauri AB and Proxima Centauri; such wide separations between components are relatively rare
HD_41742_and_HD_41700
All of space observable from the Earth at the present
the value for ρ c {\displaystyle \rho _{\text{c}}} critical density, is: ρ c = 3 H 2 8 π G , {\displaystyle \rho _{\text{c}}={\frac {3H^{2}}{8\pi G}}
Observable_universe
± 6 Antlia K4III 4.25 PDS 70 (V1032 Centauri) 366.6 ± 0.8 K7 12 Has one confirmed exoplanet (PDS 70b). J Centauri 367 ± 5 Centaurus B3V 4.505 Kappa Gruis
List of star systems within 350–400 light-years
List_of_star_systems_within_350–400_light-years
F8V Eta Centauri 306 ± 6 Centaurus B1.5 Vne +2.35 YSES 1 (TYC 8998-760-1) 307.3 ± 0.3 K3IV 11.19 Has two confirmed exoplanet (YSES-1b & c). Rho Persei
List of star systems within 300–350 light-years
List_of_star_systems_within_300–350_light-years
Measure of observed changes in the apparent locations of stars
Barnard's Star, about 6 light-years away. After the Sun and the Alpha Centauri system, it is the nearest known star. Being a red dwarf with an apparent
Proper_motion
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
Shock wave caused by blowing stellar wind
c_{s}^{2}=\gamma p/\rho } where γ {\displaystyle \gamma } is the ratio of specific heats, p {\displaystyle p} is the pressure, and ρ {\displaystyle \rho } is the
Bow_shock
Bibcode:2008MNRAS.384..173F. doi:10.1111/j.1365-2966.2007.12671.x. ISSN 0035-8711. "Rho Pup". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December
List_of_nearest_giant_stars
List of systems with multiple planets
are listed below according to the star's distance from Earth. Proxima Centauri, the closest star to the Solar System, has at least two planets (the confirmed
List of multiplanetary systems
List_of_multiplanetary_systems
Detecting planets located outside the Solar System
elements". Alpha Centauri Bb: On 16 October 2012, the discovery was announced of an Earth-mass planet in orbit around Alpha Centauri B. The discovery
Discoveries_of_exoplanets
NASA satellite of the Explorer program
massive star Puppis A, which is a supernova remnant The Rho Ophiuchi cloud complex Lambda Centauri nebula, a star-forming region in the Milky Way The Helix
Wide-field Infrared Survey Explorer
Wide-field_Infrared_Survey_Explorer
Constellation in the northern celestial hemisphere
and the fifth-brightest star in all, surpassed only by Arcturus, Alpha Centauri, Canopus, and Sirius. Vega was the pole star in the year 12,000 BCE, and
Lyra
Proposed lightweight radiator
a^{2})\sigma FT^{4}=-c\rho {\frac {4\pi a^{3}}{3}}{\frac {dT}{dt}}} where c {\displaystyle c} is the specific heat capacity, ρ {\displaystyle \rho } is the density
Liquid_droplet_radiator
Main sequence II Beta Centauri Aa (Hadar) 14h 03m 49.40535s −60° 22′ 22.9266″ Centaurus 361 ± 2 B1 III Blue giant II Beta Centauri Ab (Hadar) 14h 03m 49
List_of_supernova_candidates
Astrophysical phenomenon
of the Regor or Gamma Velorum system. Mimosa, Acrux and Hadar or Beta Centauri, three bright star systems in the southern constellation of Crux and Centaurus
Supernova
Classification of stars based on spectral properties
giants and supergiants, such as Arcturus, whereas orange dwarfs, like Alpha Centauri B, are main-sequence stars. They have extremely weak hydrogen lines, if
Stellar_classification
Group of stars
brightest globular clusters are visible to the naked eye; the brightest, Omega Centauri, was observed in antiquity and catalogued as a star, before the telescopic
Star_cluster
60.7 ± 2.2 KV WISE 2301+0216 60.7 T6.5 Gliese 254 60.8 ± 2.0 KV Theta Centauri (Menkent)$ 60.9 ± 0.9 Centaurus 14h 06m 40.94752s −36° 22′ 11.8371″ K0III
List of star systems within 60–65 light-years
List_of_star_systems_within_60–65_light-years
Constellation in the southern celestial hemisphere
explorer and astronomer Nicolas Louis de Lacaille labelled them Alpha to Rho in 1756, but omitted Omicron and Xi, and labelled a pair of stars close together
Tucana
Substance providing scientific evidence of past or present life
Criterion-system of exobiology," by Joshua Lederberg (1965). In 1973, Joon H. Rho used the term "biomarker" in his paper, "A search for porphyrin biomarkers
Biosignature
Constellation in the southern celestial hemisphere
and 26 times more luminous. A line drawn between Alpha Hydri and Beta Centauri is bisected by the south celestial pole. In the southeastern corner of
Hydrus
Star whose brightness fluctuates, as seen from Earth
or less. Several nearby red dwarfs are flare stars, including Proxima Centauri and Wolf 359. A superflare is a class of energetic, short duration flare
Variable_star
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
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
Type of star
Herculis 3.90 B5IV 1.25 94 Nu Eridani 3.92 B2III 207 Mu Eridani 4.00 B5IV 160 Rho Lupi 4.05 B5V 0.45 97 HD 105382 4.47 B6IIIe 1.30 134 Tau8 Eridani 4.63 B5V
Slowly_pulsating_B-type_star
Coupé Canguro 1964 Coupé Carabo 1968 Coupé Castagna Vittoria 1995 Coupé Centauri Roadster Coupé Dardo 1998 Roadster Disco Volante 2013-2017 Coupé, Spyder
List_of_sports_cars
1079 58.5 ± 0.8 KV Gliese 787 58.5 ± 1.4 KV Gliese 418 58.5 ± 1.4 KV Iota Centauri (Alhakim/Kulou)$ 58.6 ± 0.8 Centaurus 13h 20m 35.81737s −36° 42′ 44.2447″
List of star systems within 55–60 light-years
List_of_star_systems_within_55–60_light-years
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
Branch of astronomy
{g}}}={3L_{\odot }Q_{\rm {PR}} \over {16\pi GMc\rho s}}=5.7\times 10^{-4}{Q_{\rm {PR}} \over {\rho s}}} where ρ {\displaystyle \rho } is the density and s {\displaystyle
Dust_astronomy
0.007 14.66 DZ10.0 521 Canis Venatici 43.605 ± 0.009 10.26 M1V 525.1 1 Centauri Centaurus 63.3 ± 0.2 4.23 F2 V 536 Virgo 33.990 ± 0.009 9.707 M0V b c 527
List of Gliese and GJ objects (1-1000)
List_of_Gliese_and_GJ_objects_(1-1000)
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
American gay collegiate fraternity
Arizona Active Alpha Centauri Alumni Association Washington, D.C. Active Alpha Psi Alumni Association Kent, Ohio Active Alpha Rho Alumni Association State
Delta_Lambda_Phi
American comic strip
in the Aqua-Mole (04/30/1962 – 09/15/1962) 120 strips D061 The Proxima Centauri Run (09/17/1962 – 02/16/1963) 132 strips D062 Lady Loot (02/18/1963 – 05/18/1963)
Brick_Bradford
made between 2019 and 2020 that did not originate from around Proxima Centauri – and hence are likely results of forms of local radiofrequency interference
2021_in_science
(2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri" (PDF). Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur
List of exoplanets discovered in 2016
List_of_exoplanets_discovered_in_2016
RHO CENTAURI
RHO CENTAURI
Male
Portuguese
Portuguese form of Latin Desiderius, DESIDÉRIO means "longing."Â
Girl/Female
Gujarati, Hindu, Indian
Soul
Male
Finnish
Finnish name URHO means "brave."
Female
Japanese
Variant spelling of Japanese Chou, CHO means "butterfly."
Male
Japanese
(ç¿”) Japanese name SHO means "to fly, to soar" or "wind instrument."
Boy/Male
Arabic, Hindu, Indian, Marathi, Muslim
Victorious
Boy/Male
Australian, Indian, Indonesian, Japanese, Portuguese, Spanish, Tamil
Rival; Laborious; Eager; River; Brook; Stream; Happy
Surname or Lastname
English (Devon)
English (Devon) : variant spelling of Roe.Korean : variant of No.
Boy/Male
Spanish
River. Abbreviation of names ending with '-rio.
Male
Portuguese
Portuguese form of Latin Marius, MÃRIO means "male, virile."
Female
Japanese
(1-亮, 2-é¼, 3-è«’, 4-涼) Japanese unisex name RYO means 1) "brightness," 2) "distant," 3) "reality," 4) "refreshing."
Boy/Male
Anglo, Australian, Danish
Good; Red Haired
Boy/Male
African, Chinese, Hindu, Indian, Kannada, Korean, Tamil, Telugu
Diamond
Boy/Male
Hindu, Indian
Spirit
Female/Male/Unisex
Korean
(豪金) Korean name JIN-HO means "golden hero/leader."
Boy/Male
Korean
Righteous.
Boy/Male
Anglo Saxon
Red haired.
Boy/Male
Australian, Chinese, Vietnamese
Longevity; Long Living
Boy/Male
Korean
Deep lake.
Girl/Female
Spanish
River.
RHO CENTAURI
RHO CENTAURI
Girl/Female
Indian, Tamil
Flower Buds
Boy/Male
Hindu, Indian, Marathi
The Supreme Being
Surname or Lastname
English
English : variant of Pallister.
Boy/Male
Celebrity, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu, Traditional
Season; Made of Gold; Ritu
Boy/Male
Hindu, Indian, Sanskrit
Indestructible
Girl/Female
American, Australian, British, Chinese, Danish, English, French, German, Indian, Latin, Portuguese, Spanish, Swedish
Voyager; Blessed; Brings Joy; Violet Flower; Brings Happiness; Voyager through Life; Traveller; The One that Makes the Others Happy
Girl/Female
Indian
Daughter of Shukra.
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi
Cloud
Girl/Female
Tamil
The Moon
Surname or Lastname
English
English : variant spelling of Dear.Irish : reduced Anglicized form of Gaelic Ó Duibhidhir (see Dwyer).
RHO CENTAURI
RHO CENTAURI
RHO CENTAURI
RHO CENTAURI
RHO CENTAURI
pron. pl.
Those.
n.
One who extols; one who praises.
adv.
Then.
a.
Pertaining to, or of the same horizon as, certain Mesozoic strata of the Rhetian Alps. These strata are regarded as closing the Triassic period. See the Chart of Geology.
object.
Originally, an interrogative pronoun, later, a relative pronoun also; -- used always substantively, and either as singular or plural. See the Note under What, pron., 1. As interrogative pronouns, who and whom ask the question: What or which person or persons? Who and whom, as relative pronouns (in the sense of that), are properly used of persons (corresponding to which, as applied to things), but are sometimes, less properly and now rarely, used of animals, plants, etc. Who and whom, as compound relatives, are also used especially of persons, meaning the person that; the persons that; the one that; whosoever.
n.
One who delays; one who lingers.
n.
A variety of the mineral cyanite.
n.
One who flings; one who jeers.
conj.
Though.
interj.
Alt. of Hoa
def. art.
The.
n.
One who accumulates; one who collects.
pron.
Who.
interj.
An exclamation of surprise, joy, dejection, uneasiness, weariness, etc.
a & n.
Rhetain.
interj.
Alt. of Hoa
pron.
One; any; one.
n.
See 1st Rob.
interj.
An exclamation of surprise, etc.
n.
One who hungers; one who longs.