Delta Centauri is a star

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....

 Centaurus

Centaurus

Centaurus is a bright constellation in the southern sky. One of the largest constellations, Centaurus was included among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.-Stars:...

.
It is the B type

Stellar classification

In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...

 third-magnitude

Apparent magnitude

The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...

 star. It is classified as a Gamma Cassiopeiae type variable star

Variable star

A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...

 and its brightness varies from magnitude +2.51 to +2.65.

This Be star

Be star

A Be star is a B-type star with prominent emission lines of hydrogen in its spectrum. The designation is combined by the spectral class, B, and the lowercase e denoting emission in the spectral classification system. Line emission from other atomic ions might be present as well, but is typically...

 shares a proper motion with the nearby stars HD 105382 and HD 105383, so they may form a small cluster or perhaps a triple star system.

Etymology

In Chinese

Chinese language

The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...

, , meaning Horse's Tail, refers to an asterism consisting of δ Centauri, G Centauri

G Centauri

G Centauri is a star in the constellation Centaurus. It is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.82 and is approximately 400 light years from Earth....

 and ρ Centauri

Rho Centauri

Rho Centauri is a star in the constellation Centaurus. ρ Centauri is a blue-white B-type main sequence dwarf with an apparent magnitude of +3.97. It is approximately 342 light years from Earth....

. Consequently, δ Centauri itself is known as . From this Chinese name, the name Ma Wei was appeared.

The people of Aranda

Aranda

-Places and events:*Aranda de Duero, a Spanish town located in Burgos province, the site of the Council of Aranda*Aranda , see Comarcas of Aragon*Aranda, Australian Capital Territory, a Canberra suburb named after the Arrernte people...

 and Luritja

Luritja

Luritja is a name used to refer to several dialects of the Indigenous Australian Western Desert Language, and thereby also to the people who speak these varieties, and their traditional lands.-Origin and meaning of Luritja:...

 tribe around Hermannsburg

Hermannsburg

Hermannsburg is a municipality in the Celle district, in Lower Saxony, Germany. It is situated at the River Örtze, approx. 15 kilometers east of Bergen and 30 kilometers north of Celle.-Division of the municipality:...

, Central Australia

Central Australia

Central Australia/Alice Springs Region is one of the five regions in the Northern Territory. The term Central Australia is used to describe an area centred on Alice Springs in Australia. It is sometimes referred to as Centralia; likewise the people of the area are sometimes called Centralians...

 named Iritjinga, "The Eagle-hawk", a quadrangular arrangement comprising this star, γ Cen (Muhlifain), γ Cru

Gamma Crucis

Gamma Crucis , often called Gacrux, is a red giant star approximately 88 light-years away in the constellation of Crux. Among Portuguese-speaking peoples it is also named "Rubídea" , in reference to its color. The star is the third-brightest star in Crux and one of the brightest stars in the...

 (Gacrux), and δ Cru (Palida).