Rho Aquilae 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....

 Delphinus

Delphinus

Delphinus is a constellation in the northern sky, close to the celestial equator. Its name is Latin for dolphin. Delphinus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains among the 88 modern constellations recognized by the International Astronomical...

 – it moved

Proper motion

The proper motion of a star is its angular change in position over time as seen from the center of mass of the solar system. It is measured in seconds of arc per year, arcsec/yr, where 3600 arcseconds equal one degree. This contrasts with radial velocity, which is the time rate of change in...

 across the border from Aquila

Aquila (constellation)

Aquila is a stellar constellation. Its name is Latin for 'eagle' and it is commonly represented as such. In mythology, Aquila was owned by the Roman god Jupiter and performed many tasks for him....

 into Delphinus in 1992. http://articles.adsabs.harvard.edu//full/1992JRASC..86..221H/0000222.000.html It has the traditional name Tso Ke, from the Mandarin

Standard Mandarin

Standard Chinese or Modern Standard Chinese, also known as Mandarin or Putonghua, is the official language of the People's Republic of China and Republic of China , and is one of the four official languages of Singapore....

 左旗 zuǒqí meaning "the left flag".

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 Left Flag

Ox (Chinese constellation)

The Ox mansion is one of the Twenty-eight mansions of the Chinese constellations. It is one of the northern mansions of the Black Tortoise.-Asterisms:...

, refers to an asterism consisting of ρ Aquilae, α Sagittae

Alpha Sagittae

Alpha Sagittae is a star in the constellation Sagitta. It has the traditional name Sham or Alsahm which comes to us from Arabic سهم sahm and means Arrow, the name formerly having been applied to the whole constellation....

, β Sagittae

Beta Sagittae

Beta Sagittae is a G-type giant star in the constellation of Sagitta. It has an apparent visual magnitude of approximately 4.387....

, δ Sagittae, ζ Sagittae, γ Sagittae, 13 Sagittae, 11 Sagittae and 14 Sagittae

14 Sagittae

14 Sagittae or HD 190229 is a star, in the Aquila constellation.-References:* *...

. Consequently, ρ Aquilae itself is known as

Rho Aquilae is a white A-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...

 main sequence dwarf

Main sequence

The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung–Russell diagrams after their co-developers, Ejnar Hertzsprung and Henry Norris Russell...

 with an apparent 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...

 of +4.94. It is approximately 154 light years

Light Years

Light Years is the seventh studio album by Australian recording artist Kylie Minogue. It was released on 25 September 2000 by Parlophone and Mushroom Records. The album's style was indicative of her return to "mainstream pop dance tunes"....

 from Earth

Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

.