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Beta Delphini

Astronomy Beta CygniBeta Draconis

ROTANEV (Beta Delphini). The two brighter stars of the exquisite constellation Delphinus (the Dolphin) fall well outside the traditional systems of naming stars after their characters or constellation placements (however confused these have become).

 


and Gamma Sagittae, and southeast of Albireo (Beta1 Cygni); east of the Dumbbell Nebula; southwest of the Veil or Witch's Broom, Lace-work, Cirrus, Network, and Filamentary nebulae, and northwest of Sualocin and Rotanev (Alpha and Beta Delphini, ...

The two brightest stars, [3358] alpha and [3357] beta Delphini, were named Sualocin and Rotanev respectively in a star catalogue published at the Palermo Observatory in Italy in 1814.

Delphinus has several fine binaries, a Mira-type variable, and a very remote globular cluster. Beta Delphini is a very close visual binary with orbit of 26.7 years. Epoch 2000 values: 4.0, 4.9; PA 343º, separation 0.5".

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 ...

The names of the two brightest stars of this constellation, Sualocin (Alpha Delphini) and Rotanev (Beta Delphini), are not, as one might expect, names dating from Antiquity, but instead are quite new.

See also: Sky, Rotanev, Distance, Constellation, Second