BY LETTER
B-Type Star
 Image from Steve Bowers | |
| Adhara is a B-type star surrounded by orbital megastructures | |
Hot blue-white star that is among the brightest in the sequence of spectral types, second only to the O-type star. They are distinguished by neutral helium lines, with hydrogen lines strengthening in B6 through B9.
A B0 type star generally has a mass of about 15 to 18 times that of Sol, a luminosity 13,000 times as great, and a surface temperature of around 28,000 Kelvin. In the case of a B5 type the properties are a mass of about 6.4 times, and a luminosity 790 times, and surface temperature of about 15,000 Kelvin. A B0 star, being so hot and bright, will spend only about eleven million years on the main sequence. When it collapses, having exhausted all its fuel, a B type star will most likely become a black hole. These rare stars, only somewhat more common than O-types, very rarely have life-supporting planets, although proto-life and complex molecules may be common. Like the O-types, B-type stars are highly valued by development corporations, industrialist clades and hyperturings, amat farmers, and stellar engineers.
Related Articles
- A-Type Star
- Adhara (Epsilon Canis Majoris)
- Apparent Brightness of the Local Sun
- F-type Star
- G-Type Star
- M-Type Star
- O-type Star
- Spectral Class - Text by M. Alan Kazlev
A class to which a star belongs because of its spectrum, which in turn is determined by its temperature. The spectral classes are O, B, A, F, G, K, and M, from hottest to coolest.
Development Notes
Text by M. Alan Kazlev
Initially published on 08 October 2001.
Initially published on 08 October 2001.
