Zeta Apodis

ζ Apodis

Template:Location mark Location of ζ Apodis (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Apus
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	+4.78
Characteristics
Spectral type	K2 III
U−B Template:Engvar	+1.27
B−V Template:Engvar	+1.21
Astrometry
Radial velocity (Rv)	+ km/s
Proper motion (μ)	RA:  mas/yr Dec.:  mas/yr
Parallax (π)	11.1175±0.1047 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	−0.04
Details
Mass	Template:Solar mass
Radius	18.608 Template:Solar radius
Luminosity	Template:Solar luminosity
Temperature	K
Metallicity [Fe/H]	−0.30 dex
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

Zeta Apodis is a star in the southern constellation of Apus. Its identifier is a Bayer designation that is Latinized from ζ Apodis, and abbreviated Zet Aps or ζ Aps, respectively. The star has an apparent visual magnitude of +4.78, which is bright enough to allow it to be seen with the naked eye. The distance to this star is known from parallax measurements to be around . It is drifting further away with a heliocentric radial velocity of +11 km/s.

The spectrum of Zeta Apodis matches a stellar classification of K2 III, with the luminosity class of III indicating it is an evolved giant star. Zeta Apodis has roughly 1.5 times the Sun's mass, and expanded to 18 times the size of the Sun. It radiates 126 times the luminosity of the Sun from its photosphere at an effective temperature of 4,486 K, giving it the orange-hued glow of a K-type star.

Naming

In Chinese caused by adaptation of the European southern hemisphere constellations into the Chinese system, (), meaning Exotic Bird, refers to an asterism consisting of ζ Apodis, ι Apodis, β Apodis, γ Apodis, δ Octantis, δ¹ Apodis, η Apodis, α Apodis and ε Apodis. Consequently, ζ Apodis itself is known as (, Template:Langx.)