Eta Aquarii 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....

 Aquarius

Aquarius (constellation)

Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for "water-bearer" or "cup-bearer", and its symbol is , a representation of water....

. This star sometimes called with the name Hydria, from the Greek

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

 word ‘υδρια (hudria), meaning "water jar". Another name of this star is Deli, derived from Hebrew word דלי (dali) literally meaning "hard" .

This star, along with γ Aqr

Gamma Aquarii

Gamma Aquarii is a star in the constellation Aquarius. It has the traditional name Sadachbia, from an Arabic expression سعد الأخبية sa‘d al-’axbiyah "luck of the homes " in Hindu system it is also called Sadhabhisk in devnagari, sadhayam in tamil.In the catalogue of stars in the Calendarium of Al...

 (Sadachbia), π Aqr

Pi Aquarii

Pi Aquarii or Seat is a star in the constellation Aquarius. The name Seat is shared with Delta Aquarii, where it has long been misspelled Skat. It may be from the Arabic word ši'at "a wish"....

 (Seat) and ζ Aqr

Zeta Aquarii

Zeta Aquarii is a binary star, the central star in the "water jar" asterism in the constellation Aquarius. It is approximately 103 light years from Earth....

 (Sadaltager / Achr al Achbiya), were al Aḣbiyah (الأخبية), the Tent.

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 Tomb

Rooftop (Chinese constellation)

The Rooftop 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 η Aquarii, γ Aquarii

Gamma Aquarii

Gamma Aquarii is a star in the constellation Aquarius. It has the traditional name Sadachbia, from an Arabic expression سعد الأخبية sa‘d al-’axbiyah "luck of the homes " in Hindu system it is also called Sadhabhisk in devnagari, sadhayam in tamil.In the catalogue of stars in the Calendarium of Al...

, ζ Aquarii

Zeta Aquarii

Zeta Aquarii is a binary star, the central star in the "water jar" asterism in the constellation Aquarius. It is approximately 103 light years from Earth....

, π Aquarii

Pi Aquarii

Pi Aquarii or Seat is a star in the constellation Aquarius. The name Seat is shared with Delta Aquarii, where it has long been misspelled Skat. It may be from the Arabic word ši'at "a wish"....

. Consequently, η Aquarii itself is known as

Eta Aquarii is a blue-white 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...

 subgiant 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 +4.04. It is approximately 184 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.

Eta Aquarii is near the radiant of a meteor shower named after it.