Best B Type

Algol is a binary star system notable for its predictable dimming due to an eclipsing orbit. The primary and secondary stars regularly pass in front of each other from our perspective, causing fluctuations in brightness. This behavior was one of the first astronomical phenomena to be explained throu...

Acrux is the brightest star in Crux (the Southern Cross), a multiple star system about 320 light-years away used for navigation in the southern hemisphere.

Spica is the brightest star in Virgo, a binary system of two close blue giants about 250 light-years away whose mutual gravity distorts both stars.

Regulus is the brightest star in Leo, about 79 light-years away, and rotates so quickly that it bulges noticeably at its equator and is nearly oblate.

Hadar, also called Beta Centauri, is a triple star system in Centaurus and one of the two pointer stars used to locate the Southern Cross.

Achernar is the brightest star in Eridanus and among the least spherical known stars, spinning so rapidly it is significantly flattened at its poles.

Eta Ursae Majoris, the star at the tip of the Big Dipper's handle, a blue-white main-sequence star about 104 light-years away and the hottest star in the asterism.

Shaula is the second-brightest star in Scorpius, a multiple-star system about 570 light-years away that marks the tip of the scorpion's tail.

Adhara is the brightest star in Canis Major after Sirius, a blue supergiant about 430 light-years away and one of the strongest ultraviolet sources in the sky.

Alpheratz (Alpha Andromedae) was historically shared between Andromeda and Pegasus as Delta Pegasi, forming a corner of the Great Square of Pegasus.

Bellatrix is the third-brightest star in Orion, a blue giant about 250 light-years away that marks the hunter's left shoulder and is among the hottest bright stars.

Epsilon Sagittarii, the brightest star in Sagittarius, a blue-white giant about 143 light-years away and a standard star in southern celestial navigation.

Second-largest asteroid in the main belt, discovered by Heinrich Olbers in 1802, notable for its unusually high orbital inclination of about 34 degrees.

Cygnus OB2-12 is a blue hypergiant in the Cygnus OB2 association and one of the most intrinsically luminous stars in the Milky Way, heavily obscured by dust and most detectable at infrared wavelengths.

Beta Canis Majoris, a blue-white giant roughly 500 light-years away that serves as the prototype for the class of pulsating variable stars known as Beta Canis Majoris variables.

Elnath, also called Beta Tauri, is a blue-white giant shared on the border of Taurus and Auriga, about 130 light-years away and the second-brightest star in Taurus.

Eta Canis Majoris, a blue supergiant roughly 3,000 light-years away in Canis Major and one of the most intrinsically luminous stars visible to the unaided eye.

Markab (Alpha Pegasi) is a blue-white giant forming one corner of the Great Square of Pegasus, an asterism used as a guidepost in autumn skies.

Sigma Sagittarii, the second-brightest star in Sagittarius, a blue-white main-sequence star about 228 light-years away and one of the 58 standard navigational stars.

Alnair is the brightest star in Grus, a blue-white subgiant about 101 light-years away whose name derives from Arabic meaning 'the bright one.'

τ Scorpii (Paikauhale) is a hot blue giant in Scorpius notable for strong stellar winds and X-ray emission, bearing a Hawaiian name approved by the IAU in 2018.

π Scorpii (Fang) is a triple star system in Scorpius, roughly 590 light-years from Earth, whose name originates from the Chinese lunar mansion called the Room.

β Corvi (Kraz) is the second-brightest star in Corvus, a yellow-white bright giant of spectral type G5, located approximately 140 light-years from Earth.

Alpha Columbae, a blue-white subgiant and the brightest star in the southern constellation Columba, with an apparent magnitude of about 2.65.

Gamma Canis Majoris, a blue-white giant star in Canis Major with the IAU-approved Arabic-derived name Muliphein, not to be confused with the nearby bright star Murzim.

Zeta Canis Majoris, a spectroscopic binary star in Canis Major whose IAU-approved name Furud derives from an Arabic phrase referring to the stars of the celestial dog.