Delphinus

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AbbreviationDel
MeaningDolphin
Pronunciation Guide is based on “Pronouncing Astronomical Names,” published in 1943 by the American Astronomical Society.del-FYE-nuss
Genitive The genitive is the Latin possessive form used in star names. For example, Alpha Orionis means “the Alpha of Orion.”del-FYE-nye
Best MonthSeptember
VisibilityGlobal
OriginAncientThese figures are rooted in the classical Greek and Mesopotamian traditions cataloged by Ptolemy in the 2nd century AD.
AuthorPtolemyPtolemy, a 2nd-century Greco-Egyptian astronomer, cataloged the 48 classical constellations in his landmark work, the Almagest. These form the core of the 88 modern constellations recognized today.
Typeconstellation
DifficultyEasy
DescriptionThe tiny but charming Dolphin is one of the most distinctive constellations — its compact diamond of four stars with a fifth trailing below looks remarkably like a leaping dolphin even in a light-polluted sky. In myth the dolphin was sent by Poseidon to locate the sea nymph Amphitrite who had fled to escape his advances; it delivered his heartfelt proposal and convinced her to accept — earning a place among the stars. Its two brightest stars, Sualocin and Rotanev, are the Latinized backwards spelling of 'Nicolaus Venator' — the assistant of astronomer Giuseppe Piazzi who sneaked his own name into the star catalog, one of astronomy's great practical jokes.

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