Y Aquilae, 18 Aql, BD+10 3787, FK5 3525, HD 178125, HIP 93867, HR 7248, SAO 104488[8]
Database references
SIMBAD
data
18 Aquilae (abbreviated 18 Aql) is a triple star[9] system in the constellation of Aquila. 18 Aquilae is the Flamsteed designation; it also bears the variable star designation Y Aquilae. It has an apparent visual magnitude of 5.07. The distance to this system can be estimated from the annual parallax shift of 6.43 mas, yielding a value of around 510 light-years (160 parsecs) away from Earth.
A light curve for Y Aquilae, plotted from TESS data[10]
The inner pair of stars in this system form a spectroscopic binary with a combined magnitude of 5.44 and an orbital period of 1.302 days. The primary component is a giant star with a stellar classification of B8 III.[2] Because the orbital plane is inclined near the line of sight, two form an eclipsing binary system. The eclipse of the primary component causes a 0.04 drop in magnitude, while the eclipse of the secondary results in a decrease of 0.03.[11] At an angular separation of 0.310 arcseconds is the magnitude 6.39 tertiary component.[9] This system has a high peculiar velocity of 29.7 ± 3.9 km/s relative to the neighboring stars.[12]
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18Aquilae (abbreviated 18 Aql) is a triple star system in the constellation of Aquila. 18Aquilae is the Flamsteed designation; it also bears the variable...
in the night sky. It has the Bayer designation Alpha Aquilae, which is Latinised from α Aquilae and abbreviated Alpha Aql or α Aql. Altair is an A-type...
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V605 Aquilae, in the constellation Aquila, is the variable central star of the planetary nebula Abell 58. It is a highly unusual hydrogen-deficient carbon-rich...
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is like a river, and the Cowherd and Weaver Girl refer to the famous α-Aquilae and α-Lyrae of modern Astronomy, respectively. For this reason, the magpie...
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as an alma mater (college or other school). In ancient Rome, the [dies] Aquilae natalis was the "birthday of the eagle", the anniversary of the official...
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