Eta Lyrae 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....

 Lyra. It has the traditional name Aladfar, from the Arabic

Arabic language

Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

 الأظفر al-’uz̧fur "the talons (of the swooping eagle)", a name it shares with Mu Lyrae

Mu Lyrae

Mu Lyrae is a star in the constellation Lyra. It has the traditional name Alathfar, from the Arabic الأظفر al-’uz̧fur "the talons ", a name it shares with Eta Lyrae .Mu Lyrae has apparent magnitude 5.12 and belongs to the spectral class A3IVn.Coordinates Mu Lyrae (μ Lyr, μ Lyrae) is a star in the...

 (though the latter is typically spelled Alathfar in English).

Eta Lyrae belongs to spectral class

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...

 B2.5IV and has 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 +4.39. It is approximately 1040 light years 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...

.

Coordinates (equinox J2000.0):

• Right ascension
  Right ascension
  Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:...
  
  : 19h13m45.50s
• Declination
  Declination
  In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and...
  
  : +39°08'46.0"