Theta Trianguli Australis
Template:Location mark Location of θ Trianguli Australis (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Triangulum Australe |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | +5.50[2] |
| Characteristics | |
| Spectral type | G8-K0 III[3] |
| U−B Template:Engvar | +0.73[2] |
| B−V Template:Engvar | +0.93[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: +45.577 mas/yr[1] Dec.: +34.381 mas/yr[1] |
| Parallax (π) | 9.4515±0.1434 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +0.46[4] |
| Details[4] | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | Script error: No such module "val". Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[5] | |
| Database references | |
| SIMBAD | data |
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θ Trianguli Australis, Latinized as Theta Trianguli Australis, is a single[6] star in the southern constellation of Triangulum Australe. It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of +5.50.[2] The star is located about 345 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +11 km/s.[1]
This is an evolved G/K-type giant star with a stellar classification of G8-K0 III.[3] This star is 2.6 times more massive than the Sun, but has expanded to ten times the radius of the Sun. It is radiating 65 times the Sun's luminosity from its photosphere at an effective temperature of 5,071 K.[4]
References
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- ↑ a b c d e f Template:Cite DR3
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1". Theta Trianguli Australis' database entry at VizieR.
- ↑ Template:Cite simbad
- ↑ Script error: No such module "citation/CS1".
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