home *** CD-ROM | disk | FTP | other *** search
- DWARF
-
- A main sequence star in the H-R diagram, for example, our own Sun. Dwarfs are in the luminosity class V.
- Stars below dwarfs are divided into red dwarfs, subdwarfs, and white dwarfs. Above are giants.
-
- Luminosity class describes the absolute brightness, or magnitude, of a star. The classes are marked with Roman
- numerals I - VII.
-
- Luminosity classes:
- I includes supergiants
- II includes bright giants
- III includes giants
- IV includes subgiants
- V includes main sequence stars (dwarfs)
- VI includes subdwarfs
- VII includes white dwarfs
-
- When stars are classified by their properties, the spectral class is given first, followed by the luminosity class. This is
- called the Yerkes classification.
-