| Observation data EpochJ2000.0 EquinoxJ2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 18h 59m 45.48432s[1] |
| Declination | +26° 13′ 49.4487″[1] |
| Apparent magnitude (V) | 5.26[2] |
| Characteristics | |
| Spectral type | K2III[3] |
| B−Vcolor index | 1.228±0.003[2] |
| Astrometry | |
| Radial velocity (Rv) | −22.56±0.13[1] km/s |
| Proper motion (μ) | RA: −85.671[1]mas/yr Dec.: −10.624[1]mas/yr |
| Parallax (π) | 12.2448±0.0874 mas[1] |
| Distance | 266 ± 2 ly (81.7 ± 0.6 pc) |
| Absolute magnitude (MV) | 0.28[2] |
| Details | |
| Radius | 20.15+0.12 −0.99[1] R☉ |
| Luminosity | 128.0±1.6[1] L☉ |
| Surface gravity (log g) | 2.09[4] cgs |
| Temperature | 4,325+110 −13[1] K |
| Metallicity [Fe/H] | −0.28[4] dex |
| Other designations | |
| BD+26°3418,GC 26101,HD 176527,HIP 93256,HR 7181,SAO 86673[5] | |
| Database references | |
| SIMBAD | data |
HD 176527 is a single[6]star in the northernconstellation ofLyra, positioned near the southern constellation border withVulpecula. It has an orange hue and is dimly visible to the naked eye with anapparent visual magnitude of 5.26.[2] This object is located at a distance of approximately 266 light years from theSun based onparallax,[1] and it has anabsolute magnitude of 0.28.[2] It is drifting closer with aradial velocity of −22.6 km/s.[1]
This is an aginggiant star with astellar classification of K2III,[3] which indicates it has exhausted the supply of hydrogen at itscore, thenevolved away from themain sequence by cooling and expanding. At present it has 20[1] times theradius of the Sun. The star is radiating 128[1] times theluminosity of the Sun from its swollenphotosphere at aneffective temperature of 4,325 K.[1]