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MARFAK-EAST (Theta Cassiopeiae). While proper names are commonly used for stars of first magnitude, and for a few other special cases, and while charming and illustrative of cultural history, they sure can be confusing.
The leading star alpha Per, called Marfak or Algenib, is an F5 supergiant with 1.79 mag, which makes it, together with alpha UMa, the 32nd brightest star in the sky.
Other names for this star are Mirphak, Marfak, or Algenib.
Algenib derives from the Arabic Al Janb, "The Side". Mirfak, Mirphak, and Marfak derive from an Arabic word meaning "Elbow."
Description of the Star ...
Named Stars: SHEDIR (Alpha Cas) Caph (Beta Cas) Ruchbah (Delta Cas) Segin (Epsilon Cas) Achird (Eta Cas) Marfak (Theta Cas) Marfak (Mu Cas)
Two open clusters are visible in binoculars within the constellation.
* (7/κ Her) 5.0 Marfik [Marfak, Mirfak, Marsik] (or Maasim, see Î" Her):*: marfaq, mirfaq elbow
* (76/Î" Her) 4.41 Maasym [Masym, Misam]:*: macÅŸam wrist ...
Perseus' major star is alpha Per, called Marfak or Algenib; it is an F5 supergiant. Beta Per is the eclipsing binary Algol. Perseus was a hero in Greek mythology who killed the monstrous Medusa.
Main named stars in Cassiopeia: (Greek alphabet)
Achird (η Cas), Caph (β Cas), Chi (γ Cas), Marfak (θ,μ Cas), Ruchbah (δ Cas), Schedar (α Cas), Segin (Navi, ε Cas).
Wagman (1905-1980), who was the former director of the Allegheny Observatory in Pennsylvania and has an observatory named after him by the Amateur Astronomers' Association of Pittsburgh. Star A shares the proper name "Marfak" with HR 343.
 See also: Star, Constellation, Light, Cluster, Giant
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