Xi2 Sagittarii

Xi² Sagittarii

Template:Location mark Location of ξ2 Sagittarii (circled)
Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Sagittarius
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	+3.51
Characteristics
Spectral type	G8/K0 II/III
U−B Template:Engvar	+1.13
B−V Template:Engvar	+1.18
Astrometry
Radial velocity (Rv)	−20.10 km/s
Proper motion (μ)	RA: 33.52 mas/yr Dec.: -13.552 mas/yr
Parallax (π)	8.4092±0.1972 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	−1.72
Details
Mass	Template:Solar mass
Radius	Template:Solar radius
Luminosity	676 Template:Solar luminosity
Surface gravity (log g)	cgs
Temperature	K
Metallicity [Fe/H]	dex
Age	Myr
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

Xi² Sagittarii, Latinized from ξ² Sagittarii, is a star in the zodiac constellation of Sagittarius. Data collected during the Hipparcos mission suggests it is an astrometric binary, although nothing is known about the companion. It is visible to the naked eye with a combined apparent visual magnitude of +3.51. Based upon an annual parallax shift of as seen from Earth, this system is located around 390 light years from the Sun.

The spectrum of Xi² Sagittarii yields a mixed stellar classification of G8/K0 II/III, showing traits of a G- or K-type giant or bright giant star. It has an estimated 3.6 times the mass of the Sun and about 27 times the Sun's radius. At an age of around 380 million years, it is radiating 676 times the Sun's luminosity from its photosphere at an effective temperature of 4,541 K.