List of stars in Ara
Encyclopedia
This is the list of notable star
s in the constellation
Ara
, sorted by decreasing brightness.
Notes
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
s in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Ara
Ara (constellation)
Ara is a southern constellation situated between Scorpius and Triangulum Australe. Its name is Latin for "altar". Ara was one of the 48 Greek constellations described by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations defined by the International Astronomical...
, sorted by decreasing brightness.
Name | B Bayer designation A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name... |
G. Gould designation Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension. Each star is assigned an integer , followed by " G. " , and then the Latin genitive of the constellation it lies in... |
HD Henry Draper Catalogue The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the... |
HIP | RA Right ascension Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:... |
Dec Declination In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and... |
Vis. mag. Apparent magnitude The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere... |
Abs. mag. Absolute magnitude Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth... |
Dist. (ly) | Sp. class Stellar classification In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure... |
Notes |
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β Ara Beta Arae Beta Arae is the brightest star in the constellation Ara.Beta Arae is an orange K-type bright giant or supergiant with an apparent magnitude of +2.84... |
β | 51 | 157244 | 85258 | 2.84 | −3.49 | 603 | K3Ib-II | |||
α Ara | α | 62 | 158427 | 85792 | 2.84 | −1.51 | 242 | B2Vne | Choo, Tchou; Be star Be star A Be star is a B-type star with prominent emission lines of hydrogen in its spectrum. The designation is combined by the spectral class, B, and the lowercase e denoting emission in the spectral classification system. Line emission from other atomic ions might be present as well, but is typically... |
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ζ Ara Zeta Arae Zeta Arae is a star in the constellation Ara. It is an orange K-type giant with an apparent magnitude of +3.12. It is approximately 574 light years from Earth.... |
ζ | 23 | 152786 | 83081 | 3.12 | −3.11 | 574 | K5III | |||
γ Ara Gamma Arae Gamma Arae is a star in the constellation Ara. It is approximately 1140 light years from Earth. This is a blue-white B-type supergiant with an apparent magnitude of +3.5.... |
γ | 50 | 157246 | 85267 | 3.31 | −4.40 | 1136 | B1Ib | |||
δ Ara Delta Arae Delta Arae is a double star in the constellation Ara.Delta Arae is a blue-white B-type main sequence star with an apparent magnitude of 3.60m. It is 187 light years from the Earth... |
δ | 60 | 158094 | 85727 | 3.60 | −0.19 | 187 | B8V | |||
θ Ara Theta Arae Theta Arae is a star in the constellation Ara.Theta Arae is a blue-white B-type supergiant with an apparent magnitude of +3.65. It is approximately 1010 light years from Earth.-References:* *... |
θ | 84 | 165024 | 88714 | 3.65 | −3.81 | 1012 | B2Ib | |||
η Ara Eta Arae Eta Arae or IDS 16411-5852 A is a double star in the constellation Ara. It is approximately 313 light years from Earth.... |
η | 13 | 151249 | 82363 | 3.77 | −1.14 | 313 | K5III | binary star Binary star A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary... |
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ε1 Ara Epsilon1 Arae Epsilon1 Arae is the 4th magnitude star in the constellation Ara.ε1 Arae is an orange K-type giant with an apparent magnitude of 4.06m. It is approximately 300 light years from the Earth.... |
ε1 | 25 | 152980 | 83153 | 4.06 | −0.79 | 304 | K4III | |||
σ Ara Sigma Arae Sigma Arae is a star in the constellation Ara. It is a white A-type main sequence dwarf with an apparent magnitude of +4.56. It is approximately 386 light years from Earth.-References:* *... |
σ | 67 | 159217 | 86092 | 4.56 | −0.80 | 385 | A0V | |||
λ Ara Lambda Arae Lambda Arae is a star in the constellation Ara. It is a yellow-white F-type subgiant with an apparent magnitude of +4.76. It is approximately 71.3 light years from Earth.-References:* *... |
λ | 71 | 160032 | 86486 | 4.76 | 3.06 | 71 | F3IV | |||
μ Ara Mu Arae Mu Arae , often referred to by its designation in the Henry Draper catalogue HD 160691, is a main sequence G-type star around 50 light-years away from Earth in the constellation of Ara. The star has a planetary system with four known planets, three of them with masses comparable to that of Jupiter... |
μ | 75 | 160691 | 86796 | 5.12 | 4.20 | 50 | G3IV-V | has four planets Extrasolar planet An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars... (b Mu Arae b Mu Arae b is an extrasolar planet orbiting the star Mu Arae. At least one and a half times the mass of Jupiter, its orbital period is 643.25 days. This planet's discovery was announced on December 12, 2002 and was originally thought to be on a highly eccentric orbit... , c Mu Arae c Mu Arae e is one of the four extrasolar planets orbiting the star Mu Arae. Its discovery was announced on June 13, 2002. Mu Arae e is a gas giant at least 1.8 times as massive as Jupiter. The planet orbits at Jupiter-like distance at 5.235 AU.-References:... , d Mu Arae d Mu Arae c, also known as HD 160691 c, is an extrasolar planet orbiting around Mu Arae. Its discovery was announced on August 25, 2004. At the time, its minimum mass was reported at just 14 times that of Earth, although later work established a value of 10.5 Earth masses. It orbits very close to Mu... , & e Mu Arae e Mu Arae d is an extrasolar planet orbiting the star Mu Arae. The planet has a mass about half that of Jupiter and orbits at a distance of 0.921 AU from the star with a period of 310.55 days... ) |
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κ Ara Kappa Arae Kappa Arae is a double star in the constellation Ara. It is approximately 398 light years from Earth. The more luminous star is a yellow G-type giant with an apparent magnitude of +5.19. It has two 14th magnitude companions that are at an angular distance of 25 and 30 arcseconds.-References:* * *... |
κ | 53 | 157457 | 85312 | 5.19 | −0.24 | 398 | K1III | a triple star system. | ||
ι Ara Iota Arae Iota Arae is a star in the constellation Ara. It is approximately 720 light years from Earth.This is a blue-white B-type giant with a mean apparent magnitude of +5.21. It is classified as a Gamma Cassiopeiae-type variable star and its brightness varies from magnitude +5.18 to... |
ι | 49 | 157042 | 85079 | 5.21 | −1.51 | 721 | B2IIIne | Be star; γ Cas variable | ||
π Ara Pi Arae Pi Arae is a star in the constellation Ara. This is a white A-type subgiant with an apparent magnitude of +5.25. It is approximately 138 light years from Earth.-References:* * *... |
π | 69 | 159492 | 86305 | 5.25 | 2.12 | 137 | A7V | |||
ε2 Ara Epsilon2 Arae Epsilon2 Arae is a double star in the constellation Ara. It is approximately 85.9 light years from Earth.The brighter component is a yellow-white F-type main sequence dwarf with an apparent magnitude of +5.4. It has a close companion, which is 0.6 arcseconds away and has an apparent magnitude of... |
ε2 | 31 | 153580 | 83431 | 5.27 | 3.17 | 86 | F6V | |||
NSV 8637 HD 157661 h 4949 or HJ 4949 is a double star system in the constellation of Ara.- External links :Centre de données astronomiques de Strasbourg* VizieR Detailed Page: Hoffleit, D., Warren, Jr., W. H.,... |
56 | 157661 | 85389 | 5.28 | −1.04 | 599 | B8V | multiple star system | |||
41 G. Ara | 41 | 156274 | 84720 | 5.47 | 5.75 | 29 | G8V | nearby binary star Binary star A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary... . |
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ρ2 | 24 | 152824 | 83057 | 5.53 | −0.50 | 523 | B9IV | ||||
9 | 150898 | 82171 | 5.55 | −3.48 | 2090 | B0Iab | |||||
4 | 150136 | 81702 | 5.57 | O5 | |||||||
5 | 150168 | 81733 | 5.62 | −4.38 | 3260 | B1II | |||||
26 | 153053 | 83187 | 5.64 | 2.12 | 165 | A3V | |||||
V539 Ara Nu1 Arae Nu1 Arae is a triple star system in the constellation of Ara, and approximately 800 light years from the Earth.The primary component, ν1 Arae A, is detached blue-white B-type main sequence star. The secondary component, ν1 Arae B, is the 9th magnitude. The spectroscopic companion is also... |
ν1 | 77 | 161783 | 87314 | 5.68 | −1.33 | 823 | B2V + B3V | Algol variable Algol variable Algol variables or Algol-type binaries are a class of eclipsing binary stars where the orbital plane of the stars are coincident with the line of sight from Earth. When the cooler component passes in front of the hotter one, part of the latter's light is blocked, and the total brightness of the... |
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46 | 156838 | 85147 | 5.69 | −2.82 | 1638 | B2IV | |||||
58 | 157753 | 85470 | 5.72 | 0.81 | 312 | K2III | |||||
32 | 153716 | 83535 | 5.73 | −1.00 | 723 | B5IV | |||||
8 | 150745 | 82110 | 5.74 | −1.31 | 838 | B2IV-V | |||||
47 | 156854 | 85068 | 5.76 | 0.27 | 409 | G8/K0III | |||||
48 | 156942 | 85169 | 5.76 | −0.92 | 706 | B8Ib/II | |||||
72 | 160263 | 86552 | 5.78 | −0.75 | 660 | A0V | |||||
45 | 156768 | 85049 | 5.86 | −1.05 | 786 | G8Ib/II | |||||
36 | 154903 | 84248 | 5.87 | 0.87 | 327 | K0III-IV | |||||
68 | 159463 | 86248 | 5.89 | 0.76 | 346 | K0III-IV | |||||
54 | 157662 | 85409 | 5.90 | −2.65 | 1672 | B9II | |||||
16 | 151967 | 82672 | 5.91 | −0.71 | 688 | M0III | |||||
40 | 156091 | 84731 | 5.93 | −3.06 | 2050 | K2IIICN... | |||||
HD 157819 HD 157819 HD 157819 is star in double system.-References:* * *... |
59 | 157819 | 85520 | 5.93 | −1.27 | 898 | G8II/III | Binary | |||
22 | 152527 | 82902 | 5.94 | 1.01 | 315 | A0III | |||||
V854 Ara HD 155035 HD 155035 or V854 Arae is variable star of irregular type.-References:* *... |
38 | 155035 | 84105 | 5.94 | −1.09 | 830 | M1/M2III | Irregular variable Irregular variable An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub-types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three categories:... |
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V862 Ara | 158220 | 85751 | 5.95 | 2146 | B7II-III | Be star | |||||
7 | 150576 | 81966 | 5.96 | −0.66 | 688 | G8III | |||||
29 | 153221 | 83216 | 5.98 | 0.60 | 389 | G5IV | |||||
17 | 152082 | 82806 | 5.99 | 0.30 | 448 | A0III | |||||
61 | 158220 | 85751 | 5.99 | −3.10 | 2145 | B7II/III | |||||
63 | 158476 | 85788 | 6.04 | −2.91 | 2012 | F8/G0Ib | |||||
33 | 153791 | 83481 | 6.07 | −0.33 | 620 | A2/A3V | |||||
V829 Ara HD 155341 HD 155341 or V829 Arae is an ellipsoidal variable star.-References:* * *... |
39 | 155341 | 84311 | 6.08 | −1.90 | 1283 | M1/2II/III+A | ellipsoidal variable Rotating ellipsoidal variable Rotating ellipsoidal variables are a class of variable star. They are close binary systems whose components are ellipsoidal. They are not eclipsing, but fluctuations in apparent magnitude occur due to changes in the amount of light emitting area visible to the observer... star |
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66 | 159018 | 86064 | 6.09 | −1.50 | 1072 | B9III | |||||
76 | 161420 | 87174 | 6.09 | 2.55 | 166 | A9IV | |||||
ν2 Ara Nu2 Arae Nu2 Arae is a 6th magnitude blue-white B-type giant in the constellation of Ara. It is approximately 500 light years from the Earth.The star is sometimes referred as Upsilon2 Arae .-External links:... |
ν2 | 78 | 161917 | 87379 | 6.09 | 0.13 | 508 | B9.5III/IV | |||
80 | 162123 | 87404 | 6.09 | −0.51 | 682 | G6III | |||||
85 | 165493 | 88859 | 6.13 | −0.86 | 815 | B7/B8II | |||||
1 | 149485 | 81507 | 6.16 | 0.08 | 537 | B8Vn | |||||
2 | 149837 | 81657 | 6.17 | 3.73 | 100 | F2III-IV | |||||
55 | 157599 | 85393 | 6.17 | 0.26 | 495 | B8/B9V | |||||
6 | 150421 | 81847 | 6.22 | F5Iab | |||||||
52 | 157524 | 85480 | 6.22 | −0.68 | 782 | B7/B8V | |||||
V828 Ara HD 153261 HD 153261 or V828 Arae is a Be star.-References:* * *... |
28 | 153261 | 83323 | 6.26 | −2.96 | 2280 | B2IVne | Be star | |||
64 | 158895 | 86088 | 6.26 | −1.90 | 1399 | B5II/III | |||||
82 | 163071 | 87928 | 6.26 | −1.74 | 1299 | B4III | |||||
42 | 156331 | 84759 | 6.27 | 2.54 | 182 | F2III | |||||
V626 Ara HD 160342 HD 160342 or V626 Arae is a variable star.-References:* *... |
73 | 160342 | 86628 | 6.28 | −2.01 | 1482 | M3III | Variable star Variable star A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth... |
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V872 Ara HD 149989 HD 149989 or V872 Arae is a variable star of Gamma Doradus type.-References:* *... |
3 | 149989 | 81650 | 6.30 | 2.86 | 159 | A9V | Variable Star of gamma Dor Gamma Doradus variable Gamma Doradus variables are variable stars which display variations in luminosity due to non-radial pulsations of their surface. The stars are typically young, early F or late A type main sequence stars, and typical brightness fluctuations are 0.1 magnitudes with periods on the order of one day... type. |
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V846 Ara | ρ1 | 21 | 152478 | 82868 | 6.30 | −0.51 | 751 | B3Vnpe | Be star | ||
65 | 158907 | 85975 | 6.32 | 0.52 | 470 | G6/G8III | |||||
34 | 154555 | 83984 | 6.37 | −1.87 | 1449 | B8II/III | |||||
27 | 153201 | 83269 | 6.40 | −1.40 | 1181 | Ap... | |||||
30 | 153370 | 83321 | 6.43 | 1.45 | 323 | A7V | |||||
15 | 151566 | 82418 | 6.45 | 2.07 | 245 | A5+... | |||||
83 | 164896 | 88675 | 6.46 | −1.89 | 1523 | A2III | |||||
10 | 150897 | 82091 | 6.47 | 0.78 | 448 | A1V | |||||
18 | 152220 | 82723 | 6.49 | −1.68 | 1405 | K1II | |||||
155951 | 84700 | 6.50 | 0.39 | 542 | K1III | ||||||
HD 156411 HD 156411 HD 156411 is a 7th magnitude G-type main sequence star located approximately 180 light years away in the constellation Ara. This star is larger, hotter, brighter, and more massive than our Sun. Also its metal content is three-fourths as much as the Sun. In 2009, a gas giant planet was found in... |
156411 | 84787 | 6.67 | 2.96 | 180 | G1Vw… | has a planet (b HD 156411 b HD 156411 b is an extrasolar planet which orbits the G-type main sequence star HD 156411, located approximately light years away in the constellation Ara. This planet has at least three-fourths the mass of Jupiter and takes eight-thirds years to orbit the star at a semimajor axis of 1.81 AU... ) |
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R Ara R Arae R Arae or HD 149730 is an Algol-type eclipsing binary.-References:* * *... |
149730 | 81589 | 6.73 | 2.20 | 262 | B9IV/V | Algol variable | ||||
HD 154857 HD 154857 |- bgcolor="#FFFAFA"| Equatorial [ g ] || 54,7 m/s2HD 154857 is a yellow main-sequence star approximately 224 light years away in the constellation of Ara.-Planetary system:... |
154857 | 84069 | 7.25 | 3.07 | 223 | G5V | has confirmed planet (b HD 154857 b HD 154857 b is an extrasolar planet approximately 224 light years away in the constellation of Ara. This is a gas giant mass that orbits the star in an eccentric orbit. This planet was detected by using Anglo-Australian Telescope UCLE spectrometer.... ) and unconfirmed planet (c HD 154857 c HD 154857 c is an unconfirmed extrasolar planet located approximately 224 light-years away in the constellation of Ara, orbiting the star HD 154857. This planet takes at least 1900 days to orbit the star. It was discovered on 9 February 2007 by O’Toole in Australia using the method Doppler... ) |
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HD 154672 HD 154672 HD 154672 is a yellow subgiant . It is about 65 parsecs away from the Sun that is larger than, but of a similar mass to, the Sun. However, HD 154672 is much older... |
154672 | 83983 | 8.21 | 4.12 | 215 | G3IV | has a planet (b HD 154672 b HD 154672 b is an extrasolar planet located approximately 215 light-years away in the constellation of Ara, orbiting the metal-rich and aged star HD 154672. This planet has a minimum mass five times that of Jupiter and orbits at about 60% the distance between the Earth to the Sun... ) |
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HD 152079 HD 152079 HD 152079 is a star in the constellation Ara and has one planet.- See also :* HD 129445* HD 164604* HD 175167* HD 86226* List of extrasolar planets... |
152079 | 82632 | 9.20 | 4.55 | 278 | G6V | has a planet (b HD 152079 b This planet is a eccentric Jupiter gas giant discovered by the Magellan Planet Search Program in 2010.... ) |
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Gliese 674 | 85523 | 9.36 | 11.08 | 15 | M2.5 | has a planet (b Gliese 674 b Gliese 674 b is an extrasolar planet approximately 15 light years away in the constellation of Ara. This planet orbits tightly around Gliese 674. It is a sub-Neptune-or-Uranus-mass planet either gaseous or rocky. It orbits as close as 0.039 AU from the star and takes only 4.6938 days to orbit. This... ) |
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Gliese 676A Gliese 676 Gliese 676 is a 10th magnitude binary star, both are M-type main sequence stars located approximately 53 light years away in the constellation Ara. Both stars are smaller, cooler, dimmer, and less massive than our Sun... |
85647 | 9.59 | 8.55 | 53 | M0 | component of Gliese 676 system; has a planet (b) | |||||
Gliese 676B Gliese 676 Gliese 676 is a 10th magnitude binary star, both are M-type main sequence stars located approximately 53 light years away in the constellation Ara. Both stars are smaller, cooler, dimmer, and less massive than our Sun... |
M3 | component of Gliese 676 system |
Notes