Antinous (constellation)

Antinous is an obsolete constellation no longer in use by astronomers, having been merged into Aquila, which it bordered to the north.

The constellation was created by the emperor Hadrian in 132. Antinous was a beautiful youth loved by Hadrian, and also his erotic lover. Cassius Dio, having access to Hadrian's diary now lost, informs that Antinous died either by drowning or (as he himself believed) as a voluntary human sacrifice,Cassius Dio, Roman History (Epitome) LXIX 11.2-4. something supported by Lambert (1984). The elevation to divinity meant that Antinous was to be a god in the heavens forever – Hadrian having named an asterism in the sky after him.

Tycho Brahe was originally given credit for inventing Antinous, but current finds include a celestial globe by the cartographer Caspar Vopel from 1536 that contains Antinous,Star Tales — Antinous, by Ian RidpathAn Outline Sketch of the Origin and History of Constellations and Star-Names by Gary D. Thompson, search for "Antinous" so Brahe simply measured up the sky according to contemporary traditions and decided to give Antinous a separate table in his star catalogue.Tycho B., (ed.) "Stellarum Inerrantium Plurimarum et Praecipuarum...", Astronomiae Instauratae Progymnasmata, Uraniburgi Daniae, 1602, p. 269 L.Kepler, J., (ed.) "Catalogus Stellarum Fixarum, Mille ex Accuratis...", Tabulae Rudolphinae, Pragae Bohemiae, 1627, p. 108. (by Kepler, Brahe, Bartsch, in Universitätsbibliothek Kiel scan, enter 257 in the text box and press "Zu Zeite..."!)

In the following modern times, Antinous has been variously considered an asterism within Aquila or as a separate constellation, until the International Astronomical Union discarded it when formalizing the 88 constellations in 1922.

The IAU Working Group on Star Names approved the name Antinous for the primary star of the Binary Star system Theta Aquilae A in 2024, after the obsolete constellation.

Antinous (constellation)

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