List of stars in Triangulum Australe
Encyclopedia
This is the list of notable star
s in the constellation
Triangulum Australe
, sorted by decreasing brightness.
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 |
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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... |
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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... ) |