List of stars in Triangulum Australe
Encyclopedia
This is the list of notable star
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....

 Triangulum Australe
Triangulum Australe
Triangulum Australe is a small constellation in the southern sky, created in the sixteenth century. Its name is Latin for 'the southern triangle', which distinguishes it from Triangulum in the northern sky...

, 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
α TrA
Alpha Trianguli Australis
Alpha Trianguli Australis is a star in the constellation Triangulum Australe....

 
α 42 150798 82273 1.91 −3.62 415 K2IIb-IIIa Atria
β TrA
Beta Trianguli Australis
Beta Trianguli Australis is a binary star in the constellation Triangulum Australe. It is approximately 40.1 light years from Earth....

 
β 17 141891 77952 2.83 2.38 40 F2III
γ TrA
Gamma Trianguli Australis
Gamma Trianguli Australis is a star in the constellation Triangulum Australe.Gamma Trianguli Australis is a white A-type main sequence dwarf with an apparent magnitude of +2.87. It is approximately 183 light years from Earth....

 
γ 5 135382 74946 2.87 −0.87 183 A1V
δ TrA
Delta Trianguli Australis
Delta Trianguli Australis is a binary star in the constellation Triangulum Australe. It is approximately 621 light years from Earth....

 
δ 25 145544 79664 3.86 −2.54 621 G5II
ε TrA
Epsilon Trianguli Australis
Epsilon Trianguli Australis is a wide double star in the southern constellation Triangulum Australe. It is approximately 216 light years from Earth....

 
ε 11 138538 76440 4.11 0.00 216 K0III
ζ TrA
Zeta Trianguli Australis
Zeta Trianguli Australis is a spectroscopic binary in the constellation Triangulum Australe. It is approximately 39.5 light years from Earth....

 
ζ 31 147584 80686 4.90 4.49 39 F9V
LP TrA  41 150549 82129 5.10 −1.32 626 Ap α² CVn variable
κ TrA
Kappa Trianguli Australis
Kappa Trianguli Australis is a star in the constellation Triangulum Australe.Kappa Trianguli Australis is a yellow G-type bright giant with an apparent magnitude of +5.11. It is more than 2000 light years from Earth....

 
κ 16 141767 77982 5.11 −4.70 2991 G6IIa
33 148291 80874 5.19 −1.37 669 K0II/IIICN.
ι TrA
Iota Trianguli Australis
Iota Trianguli Australis is a triple star system in the constellation Triangulum Australe. It is approximately 132 light years from Earth....

 
ι 32 147787 80645 5.28 2.25 132 F4IV γ Dor variable
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...

, triple star
Multiple star
A multiple star consists of three or more stars which appear from the Earth to be close to one another in the sky. This may result from the stars being physically close and gravitationally bound to each other, in which case it is physical, or this closeness may be merely apparent, in which case...

θ TrA
Theta Trianguli Australis
Theta Trianguli Australis is a star in the constellation Triangulum Australe.Theta Trianguli Australis is a yellow G-type giant with an apparent magnitude of +5.50. It is approximately 328 light years from Earth....

 
θ 35 148890 81252 5.50 0.49 328 G8/K0III
13 140483 77390 5.54 0.06 406 A5
9 137066 75665 5.71 −0.88 679 K5/M0III
20 142514 78279 5.74 −1.08 753 B7III
X TrA  3 134453 74582 5.75 −2.56 1495 N0v
2 G. TrA
2 G. Trianguli Australis
2 G. Trianguli Australis is a yellow-white bright giant or supergiant star in the southern constellation of Triangulum Australe. It has an apparent magnitude of +5.77 and is 1,851 parsecs or 6,037 light-years away. This distance gives it an absolute magnitude of -5.57....

 
2 133683 74184 5.76 −5.58 6037 F8Iab-Ib
19 142139 78045 5.76 1.66 215 A3V
MX TrA  45 152564 83150 5.79 −1.60 982 Ap Si α² CVn variable
8 136672 75565 5.89 0.84 334 K0III
η1 TrA
Eta Trianguli Australis
Eta Trianguli Australis is a star in the constellation Triangulum Australe. It is sometimes given a superscript: η¹ Trianguli Australis, though it is the only star that is commonly referred to by this Bayer designation....

 
η1 37 149671 81710 5.89 −0.73 688 B7IV
26 145689 79797 5.95 2.24 180 A4V
38 150026 81873 6.02 1.17 305 A0Vn
44 151441 82517 6.12 −1.20 948 B8II/III
18 141913 77927 6.14 −2.45 1707 B9II
29 147349 80455 6.14 0.55 428 A1V
133456 74047 6.18 −0.75 793 K3III 34 G. Cir
15 141585 77817 6.22 −0.19 623 K3III
39 150097 81823 6.23 −2.04 1468 K3III
22 143238 78603 6.25 1.17 339 B9.5V
7 135737 75091 6.27 −1.66 1254 B3V
43 151404 82539 6.33 1.01 377 K2III
S TrA 21 142941 78476 6.42 −2.57 2050 F8II δ Cep variable
12 138965 76736 6.45 2.01 252 A5V
153389 83556 6.47 −1.46 1254 M3/M4III
24 144481 79208 6.50 1.41 340 A3m...
HD 147018
HD 147018
HD 147018 is a G-type main sequence star in the constellation of Triangulum Australe. It has an apparent visual magnitude of approximately 8.4. In August 2009, two extrasolar planets, HD 147018 b and HD 147018 c, were reported to be orbiting this star...

 
147018 80250 8.37 5.22 139 G9V has two 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
HD 147018 b
HD 147018 b is a gas giant extrasolar planet which orbits the G-type main sequence star HD 147018, located approximately 140 light years away in the constellation Triangulum Australe. This planet has minimum mass more than twice that of Jupiter but this planet orbits lot closer to the star than...

 & c
HD 147018 c
HD 147018 c is a gas giant extrasolar planet which orbits the G-type main sequence star HD 147018, located approximately 140 light years away in the constellation Triangulum Australe. It has mass at least six and a half time more than Jupiter and orbits the twice nearly twice the distance between...

)
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