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Delta Virginis belongs to a small group to the west of Spica called the "awwa," which may represent some kind of barking dogs (or it may not), composed of Zavijava (Beta Vir), Porrima (Gamma), Vindemiatrix (Epsilon), Zaniah (Eta), ...
Main named stars in Virgo: (Greek alphabet)
Auva (δ Vir), Heze (ζ Vir), Porrima (γ Vir), Rijl al Awwa (μ Vir), Spica (α Vir), Syrma (ι Vir), Vindemiatrix (ε Vir), Zaniah (η Vir), Zavijah (β Vir).
Regulus Alpha Leonis
Rigel Beta Orionis
Rigil Kentaurus Alpha Centauri
Rijl al Awwa Mu Virginis
Rotanev Beta Delphini
Ruchba Omega-2 Cygni
Ruchbah Delta Cassiopeiae
Rukbat Alpha Sagittarii
Rukh Delta Cygni ...
AWWA (1992) B604 uses the 50-mesh sieve (0.297 mm) as the minimum GAC size. The most popular aqueous phase carbons are the 12x40 and 8x30 sizes because they have a good balance of size, surface area, and headloss characteristics.
 See also: Second, Light, Temperature, Kelvin, Distance
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