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Illustrated Guide to Astronomical Wonders by Barbara Fritchman Thompson, Robert Bruce Thompson

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19Delphinus, The Dolphin

NAME: Delphinus (del-FEE-nus)

SEASON: Summer

CULMINATION: midnight, 31 July

ABBREVIATION: Del

GENITIVE: Delphini (del-FEE-nee)

NEIGHBORS: Aql, Aqr, Equ, Peg, Sge, Vul

BINOCULAR OBJECTS: NGC 6934

URBAN OBJECTS: NGC 6934, 12-gamma (STF 2727)

Delphinus is a small equatorial constellation, ranking 69th in size among the 88 constellations. It covers 189 square degrees of the celestial sphere, or about 0.5%. Despite the fact that the brightest stars in Delphinus are only of the fourth magnitude, Delphinus is quite prominent because it lies in a region of the sky that is devoid of bright stars.

Delphinus is an ancient constellation. In Greek mythology, Delphinus represents the dolphin that saved the poet Arion of Lesbos from ...

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