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 ...

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THE author has brought together in a small compass a list of the more prominent objects in the heavens for the use of possessors of small telescopes. The list is accompanied also by brief historical ...

Photo taken on June 19, 2015 shows the Large Sky Area Multi-Object Fibre Spectroscopy Telescope (LAMOST) at the Xinglong observation station of the National Astronomical Observatories under the ...