14 Andromedae
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 31m 17.41s[1] |
| Declination | +39° 14′ 10.3″[1] |
| Apparent magnitude (V) | 5.22 |
| Characteristics | |
| Spectral type | K0 III[2] |
| U−B color index | 0.87 |
| B−V color index | 1.02 |
| Variable type | Suspected[citation needed] |
| Astrometry | |
| Radial velocity (Rv) | -58.8 km/s |
| Proper motion (μ) | RA: 286.72 ± 0.23[1] mas/yr Dec.: -84.22 ± 0.17[1] mas/yr |
| Parallax (π) | 12.63 ± 0.27[1] mas |
| Distance | 258 ± 6 ly (79 ± 2 pc) |
| Absolute magnitude (MV) | 6.24[citation needed] |
| Details | |
| Mass | 2.2[2] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia |
data |
14 Andromedae (abbreviated 14 And), also named Veritate, is an orange giant star of spectral type K0III situated approximately 258 light-years away[1] in the constellation of Andromeda. As of 2008, an extrasolar planet (designated 14 Andromedae b, later named Spe) is thought to be orbiting the star.[2]
14 Andromedae is a suspected variable star. It is thought it was formerly an A- or F-type main-sequence star early in its life.
Nomenclature
14 Andromedae is the star's Flamsteed designation. Following its discovery the planet was designated 13 Andromedae b. In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars.[3] The process involved public nomination and voting for the new names.[4] In December 2015, the IAU announced the winning names were Veritate for this star and Spe for its planet.[5]
The winning names were based on those submitted by the Thunder Bay Centre of the Royal Astronomical Society of Canada[6]); namely 'Veritas' and 'Spes', Latin for 'truth' and 'hope', respectively. (Veritas was also the Roman goddess of truth and Spes was the Roman goddess of hope.) The IAU substituted the ablative forms 'Veritate' and 'Spe', which mean 'where there is truth' and 'where there is hope', respectively. This was because 'Veritas' is the name of an asteroid important for the study of the solar system.[7]
Planetary system
In 2008, a planet was announced to be orbiting the star. The planet was found to have a minimum mass of 4.8 Jupiter masses and orbiting in a circular orbit that takes 186 days to complete. The planet is one of the few known planets to be orbiting an evolved intermediate-mass star and one of the innermost (such planets have only been discovered in clump giants).[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b (Spe) | 5.33 ± 0.57 MJ | 0.83 | 185.84 ± 0.23 | 0 | — | — |
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
- ↑ NameExoWorlds The Process
- ↑ Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
- ↑ Thunder Bay Amateur Astronomers Name a Planet
- ↑ NameExoWorlds The Approved Names
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
Coordinates: 
23h 31m 17.4139s, +39° 14′ 10.313″
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