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 ...
In about 5 to 8 billion years, our sun is expected to evolve into a white dwarf—an extremely dense, Earth-sized stellar ...
Morning Overview on MSN
Scientists identify a new class of star remnants formed in pairs
Astronomers have identified a new class of stellar remnant, one that forms not from the death of a single star but from the ...
What is the origin of the letters used in star classification? Why didn't astronomers use ABCD? J. Haldiman Chicago, Illinois Stellar spectral types originally ...
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