Stellar spectral types originally followed alphabetical order. But as astronomers observed more stars and obtained more detailed spectra, they consolidated some categories and reordered the remaining ...
Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. On a clear, moonless night, you might be able to see thousands of ...
Stellar spectral types were initially arranged alphabetically; however, subsequent detailed observations led to the consolidation and reordering of categories, establishing the current OBAFGKM ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results