Zeta Aquilae
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 05m 24.6s |
| Declination | +13° 51' 48" |
| Apparent magnitude (V) | +2.99 |
| Distance | 83.2 ± 1.5 ly (25.5 ± 0.5 pc) |
| Spectral type | A0Vn |
| Other designations | |
Zeta Aquilae (ζ Aql / ζ Aquilae) is a triple star system in the constellation Aquila. It also has the traditional names Deneb el Okab, from an Arabic term ذنب العقاب ðanab al-cuqāb meaning "the tail of the falcon", and the Mandarin names Woo and Yuë, derived from 吳 wú, an old state near Jiangsu province, and 粵 yuè, an old state in Guandong province. It shares these names with ε Aquilae.
The primary component, ζ Aquilae A, is a white A-type main sequence dwarf with an apparent magnitude of +2.99. It has two 12th magnitude companions at 6.5 and 158.6 arcseconds from the primary. Zeta Aquilae is approximately 83.2 light years from Earth.
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