Chi Lupi
Encyclopedia
Chi Lupi is a spectroscopic binary star
in the constellation
of Lupus
. It has an apparent visual magnitude of approximately 3.957. The primary star in the binary is a mercury-manganese star
of spectral type B9.5V; the secondary is a metallic-lined star of type A2Vm.
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
of Lupus
Lupus (constellation)
Lupus is a constellation in the southern sky. Its name is Latin for wolf. Lupus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations...
. It has an apparent visual magnitude of approximately 3.957. The primary star in the binary is a mercury-manganese star
Mercury-manganese star
A mercury-manganese star is a type of chemically peculiar star with a prominent spectral line at 398.4 nm, due to absorption from ionized mercury...
of spectral type B9.5V; the secondary is a metallic-lined star of type A2Vm.