Del

Delphinus

Delphini · Del

189
Area (sq°)
#69
Size Rank
5
Main Stars
September
Best Month

Delphinus is a small but distinctive constellation, easily recognized by its diamond-shaped body and tail star. Its two brightest stars, Sualocin and Rotanev, are Nicolaus Venator spelled backwards, named by the astronomer Niccolò Cacciatore.

Location in the Sky

Right Ascension20h 41m
Declination+12°
QuadrantNQ4
HemisphereNorthern
Area189 square degrees
Area Rank69 of 88

When to Observe

Delphinus is best observed during September. It is located in the NQ4 quadrant and is primarily visible from the northern hemisphere. The constellation contains 5 main stars forming its asterism, with 19 Bayer/Flamsteed designated stars in total. Its brightest star is Rotanev.

Mythology & History

In Greek mythology, Delphinus represents the dolphin sent by Poseidon to find the sea nymph Amphitrite, whom the god wished to marry. The dolphin found her and persuaded her to accept Poseidon's proposal. In gratitude, Poseidon placed the dolphin among the stars.

Stars in Delphinus

2 cataloged stars