|
m Task 18b (cosmetic): eval 1 template: hyphenate params (1×); del |postscript= (1×);
|
Setting DEFAULTSORT key to Tau Andromedae using Hot Default Sort
|
||
| Line 90: | Line 90: | ||
{{Stars of Andromeda}} |
{{Stars of Andromeda}} |
||
{{DEFAULTSORT:Tau Andromedae}} |
|||
[[Category:Bayer objects|Andromedae, Tau]] |
[[Category:Bayer objects|Andromedae, Tau]] |
||
[[Category:Flamsteed objects|Andromedae, 53]] |
[[Category:Flamsteed objects|Andromedae, 53]] |
||
| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h40m 34.81645s[1] |
| Declination | +40° 34′ 37.3742″[1] |
| Apparent magnitude (V) | +4.94[2] |
| Characteristics | |
| Spectral type | B5 III[3] |
| U−B color index | -0.41[2] |
| B−V color index | -0.09[2] |
| Astrometry | |
| Radial velocity (Rv) | -14[4] km/s |
| Proper motion (μ) | RA: +15.99[1] mas/yr Dec.: -23.76[1] mas/yr |
| Parallax (π) | 4.58 ± 0.25 mas[1] |
| Distance | 710 ± 40 ly (220 ± 10 pc) |
| Details | |
| Luminosity | 851[5] L☉ |
| Surface gravity (log g) | 3.357[6] cgs |
| Temperature | 13,026[6] K |
| Rotational velocity (v sin i) | 80[7] km/s |
| Other designations | |
53 And, BD+39 378, HD 10205, HIP 7818, HR 477, SAO 37418.[8] | |
| Database references | |
| SIMBAD | data |
Tau Andromedae (τ And, τ Andromedae) is the Bayer designation for a star in the northern constellationofAndromeda. It has an apparent visual magnitude of +4.94,[2] which is bright enough to be viewed from dark suburban skies. From parallax measurements made during the Hipparcos mission, the distance to this star can be estimated as roughly 710 light-years (220 parsecs) from Earth. The brightness of this star is diminished by 0.24 in magnitude due to extinction caused by intervening gas and dust.[3]
The spectrum of this star matches a stellar classification of B5 III,[3] with the luminosity class of III indicating that this is a giant star. It is radiating about 851 times the luminosity of the Sun.[5]
InChinese, 天大將軍 (Tiān Dà Jiāng Jūn), meaning Heaven's Great General, refers to an asterism consisting of τ Andromedae, γ Andromedae, φ Persei, 51 Andromedae, 49 Andromedae, χ Andromedae, υ Andromedae, 56 Andromedae, β Trianguli, γ Trianguli and δ Trianguli. Consequently, the Chinese name for τ Andromedae itself is 天大將軍七 (Tiān Dà Jiāng Jūn qī, English: the Seventh Star of Heaven's Great General.).[9]
|
| |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
| Stars |
| ||||||||||||
| |||||||||||||
| Star clusters |
| ||||||||||||
| Nebulae |
| ||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
