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Rho Aquilae, ρ Aquilae, is the Bayer designation for a star in the northern constellation of Delphinus. It has an apparent visual magnitude of 4.94 [ 2 ] and is bright enough to be seen with the naked eye in good conditions.
Ptolemy catalogued 19 stars jointly in this constellation and in the now obsolete constellation of Antinous, which was named in the reign of the emperor Hadrian (AD 117–138), but sometimes erroneously attributed to Tycho Brahe, who catalogued 12 stars in Aquila and seven in Antinous. Hevelius determined 23 stars in the first [4] and 19 in the ...
Among the remaining stars, the nearer ones exhibit proper motion, so it is only a matter of time before some of them cross a constellation boundary and switch constellations as a consequence. In 1992, Rho Aquilae became the first star to have its Bayer designation "invalidated" by moving to a neighbouring constellation—it is now a star of the ...
Altair in comparison with the Sun. Along with β Aquilae and γ Aquilae, Altair forms the well-known line of stars sometimes referred to as the Family of Aquila or Shaft of Aquila. [17]: 190 Altair is a type-A main-sequence star with about 1.8 times the mass of the Sun and 11 times its luminosity.
R Aquilae light curve. R Aquilae is a variable star in the equatorial constellation of Aquila. It is located approximately 760 light years distant from the Sun [6] and is drifting further away with a radial velocity of 35 km/s. [5]
Zeta Aquilae, or ζ Aquilae, is a binary star [8] system in the equatorial constellation of Aquila. It is readily visible with the naked eye, being of the third magnitude. [ 2 ] Based on parallax measurements obtained during the Hipparcos mission, it is approximately 83 light-years (25 parsecs ) distant from the Sun . [ 1 ]
Delta Aquilae, Latinized from δ Aquilae, is a binary star system in the equatorial constellation of Aquila. It has an apparent visual magnitude of 3.4 [ 2 ] and, based upon parallax measurements, is located at a distance of about 50.6 light-years (15.5 parsecs ) from Earth. [ 1 ]
Theta Aquilae (θ Aql, θ Aquilae), also named Antinous, [8] is a binary star in the constellation Aquila. The combined apparent visual magnitude of the pair is 3.26, [ 2 ] making it the fourth-brightest member of the constellation.