词条 | Space densities of stars |
释义 | Space densities of stars Table Space densities of stars object density (solar mass per cubic light-year) O, B stars 0.00003 A, F stars 0.0001 dG, dK stars 0.0004 dM stars 0.0008 gG, gK stars 0.00003 gM stars 0.0000003 dark companions 0.00014 white dwarfs (white dwarf star) 0.0002 long-period variables 0.00000003 RR Lyrae stars (RR Lyrae star) 0.0000000003 Cepheids (Cepheid variable) 0.00000003 planetary nebulae (planetary nebula) 0.00000000015 open clusters 0.0000011 globular clusters (globular cluster) 0.00000003 See as table: ![]() |
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