Search results
Results from the WOW.Com Content Network
These stars also evolve through the core helium burning stage at constant luminosity, first increasing in temperature then decreasing again as they move toward the AGB. However, at the blue end of the horizontal branch, it forms a "blue tail" of stars with lower luminosity, and occasionally a "blue hook" of even hotter stars. [7]
The Blue Stars, 2008. The Blue Stars Drum and Bugle Corps was founded in 1964 by Frank Van Voorhis and David Dummer. In its first year, there was only a color guard, but soon the color guard merged with the Apple Arrows Drum and Bugle Corps of La Crescent, Minnesota to become the Blue Stars.
A blue supergiant (BSG) is a hot, luminous star, often referred to as an OB supergiant. They are usually considered to be those with luminosity class I and spectral class B9 or earlier, [ 1 ] although sometimes A-class supergiants are also deemed blue supergiants.
White and blue stars with broad heavy hydrogen lines, such as Vega and Altair. This includes the modern class A and early class F. Secchi class I (Orion subtype) A subtype of Secchi class I with narrow lines in place of wide bands, such as Rigel and Bellatrix. In modern terms, this corresponds to early B-type stars Secchi class II
Cygnus OB2 #12 is an extremely luminous blue hypergiant with an absolute bolometric magnitude (all electromagnetic radiation) of −10.9, among the most luminous stars known in the galaxy. This makes the star nearly two million times more luminous than the Sun, although estimates were even higher when the star was first discovered.
Star system Nebula Median distance () Stars in system Spectral type Apparent magnitude (V) Comments and references P Cygni (34 Cygni) : 5251±180: 1: B1-2 Ia-0ep: 4.82: The closest luminous blue variable star to Earth
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Founded by FC Blue Stars, Blue Stars/FIFA Youth Cup is an international youth club football tournament. The Zürich based club were one of the first to have a separate youth section. This youth section expanded to include a tournament involving the best youth teams in the world.