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Star in the constellation Fornax
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Rho Fornacis is a yellow-orange giant of spectral type G6III with an effective temperature of 4884 K.
It is similar, though somewhat hotter, than β Fornacis and π Fornacis, stars also in Fornax.
The diameter of Rho Fornacis is 9.9 times larger than the solar diameter but its mass is barely 1% greater than that of the Sun.
Its age is estimated at 5180 ± 3170 million years.
Rho Fornacis is a thick disk star, unlike most stars in our environment. Arcturus (α Boötis) and ε Fornacis, the latter in this same constellation, are examples of thick disk stars.
The eccentricity of its orbit around the Galactic Center (e = 0.56) is considerably greater than that of the Sun (e = 0.16), star of the thin disk.
Consequently, it shows a low metallicity—relative abundance of elements heavier than helium—, less than half that of the solar ( = -0 ,35).
Elements such as aluminum, calcium and sodium are equally deficient.
As in other similar stars, the oxygen/iron ratio is higher than in the Sun ( = 0.33).
Location of ρ Fornacis (bottom star inside circle)
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