Alpha Arietis (Hamal) is the brightest star in Aries. Beta Arietis (Sheratan) is the blue-white beta star of the constellation Aries.
There are three main stars found in the constellation Aries, Alpha Arietis, Beta Arietis, and Gamma Arietis.
Aries is not a star; it is a constellation, a grouping of stars that some people thought looked like a ram. Aries is one of twelve constellations in the Zodiac, which lie along the ecliptic. The Ecliptic is like the "equator in the stars", which is the plane of the Earth's orbit.
Beta Delphini (Rotanev) is a multiple star in the constellation of Delphinus.It has an apparent magnitude of 4.11 (Alpha) and 5.02 (Beta)
Beta Cancri is the brightest star in the constellation Cancer. Its common name is Altarf.
There is no single star called "alpha" or "beta". The brightest stars (usually) in each constellation are called "alpha" and "beta", followed by the Latin genitiv of the constellation; for example, "alpha centauri", "beta centauri", "alpha orionis", "alpha cruxis", etc.
Aries is a "constellation" not a single star.
The Pegasus Constellation has several primary stars. They are Markib, Alpha Andromedae, Alpha Pegasi, Beta Pegasi, and Algenib. Alpha Pegasi is the brightest star in the grouping.
Alpha Arietis (Hamal) is the brightest star in the constellation Aries. It is located about 66 light years from Earth.
Beta and Alpha Herculis are both 2nd Magnitude (2.78) stars
In a constellation, the star "Alpha" usually has the greatest "apparent magnitude", but that doesn't mean it's the largest. (I think that's what the question was about.)
Three of the brightest stars are called alpha apodis, beta apodis, and gamma apodis.
Rigel (beta Orionis) is the brightest star in the constellation Orion and one of the brightest stars in the sky.