This object is a
subgiant of
spectral type G8 IV; it will stop
fusing hydrogen at its
core relatively soon, starting the process of becoming a
red giant. Hence, Delta Pavonis is 24% brighter than the Sun, but the
effective temperature of its
outer atmosphere is less: 5,571 K. Its mass is 107% of
Sun's mass, with a radius 120% of
Sun's radius. Delta Pavonis's surface
convection zone extends downward to about 43.1% of the star's radius, but only contains 4.8% of the star's mass. Spectroscopic examination of Delta Pavonis shows that it has a higher abundance of elements heavier than
helium (
metallicity) than does the Sun. This value is typically given in terms of the ratio of
iron (chemical symbol Fe) to hydrogen (H) in a star's atmosphere, relative to that in Sun's atmosphere (iron being a good proxy for the presence of other heavy elements). The metallicity of Delta Pavonis is approximately \begin{smallmatrix}\left [ \frac{Fe}{H} \right ]\ =\ 0.371\end{smallmatrix} This notation gives the
logarithm of the iron-to-hydrogen ratio, relative to that of the Sun, meaning that Delta Pavonis's iron abundance is 235% of that of Sun. It is considered super metal-rich, and the high metallicity has slowed its
evolution. Studies have shown a correlation between abundant heavy elements in stars, and the presence of a planetary system, so Delta Pavonis has a greater than average probability of harboring planets. The age of Delta Pavonis is approximately 6.1 billion years. It has a
projected rotational velocity of 0.32 kilometers per second, and is spinning with a period of roughly 21 days, slightly faster than the Sun. ==Possible planetary system==