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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.
Pages in category "Aquila (constellation)" ... Psi Aquilae; PSR J1856+0245; PSR J1903+0327 ... QS Aquilae; R. R Aquilae; Rho Aquilae; S. Serpens–Aquila Rift; SGR ...
Rho Aquilae at magnitude 4.94 [26] is at about 150 light-years away. [26] Due to its proper motion it has been in the (round-figure parameter) bounds of the constellation since 1992. [ 27 ] It is an A-type main sequence star with a lower metallicity than the Sun. [ 28 ]
Bayer assigned a lowercase Greek letter (alpha (α), beta (β), gamma (γ), etc.) or a Latin letter (A, b, c, etc.) to each star he catalogued, combined with the Latin name of the star's parent constellation in genitive (possessive) form. The constellation name is frequently abbreviated to a standard three-letter form.
Aquila is a constellation on the celestial equator. Its name is Latin for 'eagle' and it represents the bird that carried Zeus/Jupiter's thunderbolts in Greek-Roman mythology. Its brightest star, Altair, is one vertex of the Summer Triangle asterism. The constellation is best seen in the northern summer, as it is located along the Milky Way.
The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance , the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.
Omega 1 Aquilae, which is Latinized from ω 1 Aquilae, is the Bayer designation for a single [8] star in the equatorial constellation of Aquila. With an apparent visual magnitude of 5.2 [ 2 ] it is a faint, yellow-white hued star that can be seen with the naked eye in dark skies.
R Aquilae is an aging red giant on the asymptotic giant branch [3] with a stellar classification that varies over time, between M5e and M9e, [2] where the 'e' suffix indicates emission features in the spectrum. The cooler spectral types occur near the minimum visual magnitude, and the hottest near maximum. [11]