Magnitude 4.646 Apparent magnitude (V) 4.646 | Constellation Aquila | |
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Nu Aquilae (ν Aql, ν Aquilae) is the Bayer designation for a double star in the constellation of Aquila and lies close to the celestial equator. It has an apparent visual magnitude of 4.72 and so is visible to the naked eye.
The spectrum of ν Aql A matches a stellar classification of F3, with the luminosity class of Ib indicating this is a supergiant. It has over twelve times the mass of the Sun and 78 times the Sun's radius. The outer atmosphere has an effective temperature of 6,900 K and it is radiating 11,800 times as much light as the Sun. At this heat, it has the yellow-white hue of an F-type star. Based upon an annual parallax shift of only 1.15 mas (with a 23% margin of error), it is approximately 2,800 light-years (860 parsecs) from Earth.
ν Aql B is a tenth magnitude star 220 arc-seconds distant. Little is known about it except an approximate spectral classification