Back Gamma Trianguli Australis AST Gamma Trianguli Australis BS Gamma del Triangle Austral Catalan HD135382 CE Gatria German Gamma Trianguli Australis Spanish گاما مثلث جنوبی Persian Gamma Trianguli Australis French גמא במשולש דרומי HE Gamma Trianguli Australis Italian

Gamma Trianguli Australis

Gamma Trianguli Australis
Location of γ Trianguli Australis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Triangulum Australe
Right ascension 15h 18m 54.58129s[1]
Declination –68° 40′ 46.3680″[1]
Apparent magnitude (V) +2.87[2]
Characteristics
Evolutionary stage Subgiant or giant star[3]
Spectral type A1III[3]
U−B color index –0.02[4]
B−V color index +0.00[4]
Astrometry
Radial velocity (Rv)–3.0[2] km/s
Proper motion (μ) RA: –65.816 mas/yr[1]
Dec.: –31.187 mas/yr[1]
Parallax (π)17.1809±0.3327 mas[1]
Distance190 ± 4 ly
(58 ± 1 pc)[1]
Absolute magnitude (MV)−0.89[5]
Details[3]
Mass3.04 M☉
Radius6.5 or 7 R☉
Luminosity249[6] L☉
Surface gravity (log g)3.39[7] cgs
Temperature8,225 K
Rotational velocity (v sin i)199[8] km/s
Age350 Myr
Other designations
γ TrA, CD−68° 1503, FK5 560, HD 135382, HIP 74946, HR 5671, SAO 253097[9]
Database references
SIMBADdata

Gamma Trianguli Australis, Latinized from γ Trianguli Australis, is a single,[10] white-hued star in the southern constellation of Triangulum Australe. Along with Alpha and Beta Trianguli Australis it forms a prominent triangular asterism that gives the constellation its name (Latin for southern triangle). It is the third-brightest member of this constellation with an apparent visual magnitude of +2.87.[2] Based upon parallax measurements, Gamma Trianguli Australis is located at a distance of about 190 light-years (58 parsecs) from Earth.[1]

  1. ^ a b c d e f Cite error: The named reference DR3 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference scfs was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference waisberg was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference clpl4 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference David2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference aaa463_2_671 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
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