What percentage of the galaxy's stellar population do G-dwarfs, like our Sun, represent?
Answer
Perhaps only 6%.
G-type main sequence stars, which include our Sun, are relatively uncommon when assessing the entire stellar population of the Milky Way. These Sunlike stars are estimated to make up only about 6% of the galaxy’s stars. Despite Earth serving as a successful case study for life around such a star, their relative scarcity compared to K dwarfs (13%) and especially M dwarfs (73%) reduces the overall number of viable G-dwarf systems available for life searches.
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