Unlike most degenerate matter where electrons are below the Fermi-Energy (chemical potential at T=0), the compression is so great that the Fermi-Energy of the electrons increases such that they combine with protons to form neutrons. Once nuclear fusion was exhausted, the star collapsed into a tiny volume.Because of its high mass, the matter has collapsed into Neutron-degenerate matter (sometimes called Neutronium), an extremely high density state made up entirely of neutrons (matter composed of stuff other than atoms, such as quarks, protons, neutrons or whatever, is referred to as "degenerate matter"). Neutron stars are the stellar remnants of massive stars that have reached the end of their lives. Thus, G2 V means: The Sun is semi hot (G), it belongs to the hotter stars (2) in class G and it is considered as a so called main-sequence star ( V). Vz for less luminous main sequence stars.Va for extremely luminous main sequence stars.V for main-sequence stars (most of the known stars belong to this class).Ia or 0 for hypergiants or extremely luminous supergiants.Those spectral characteristics provide information about the type of the star: Luminosity class: A luminosity class is added to the spectral class using Roman numerals.This classifies the stars by its spectral characteristics considering color and brightness.Spectral subclass: Each letter class is then subdivided using a numeric digit with 0 being the hottest and 9 being the coolest.A few of those classes have subclasses such as DA, DB and DC as subclasses of D. Other letters specify extensions to this classification system, namely: W (WN, WC, WO), L, T, Y, C, S, D. (A helpful real-world mnemonic for remembering this is, "Oh Be A Fine Girl, Kiss Me.") This mainly specifies the temperature ranging from O (hottest) to M (coolest). Spectral class: A capital letter out of the sequence: O, B, A, F, G, K, M.2.8 White Dwarfs (D, DA*, DB*, DC*, DO*, DQ, DX)Įach star or dwarf in Elite: Dangerous has an identifier for its classification which conforms to the Morgan–Keenan (MK) classification system.įor example, the Sun of Sol has the classification identifier: G2 VĮach identifier consists of three components:. ![]() 2.5 Wolf-Rayet Stars (W, WC, WNC, WNC, WO).2.4 Carbon Stars (C, CH, CHd, CJ, CN, CS, MS, S).2.1 Main Sequence Stars (O, B, A, F, G, K, M).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |