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Oldest stars in our galaxy discovered(TH)
Context
Article talks about the discovery of some of the oldest stars in our Milky Way galaxy by the astronomers
Cool subdwarfs
Scientists, in their study, focussed on old or “senior citizen” stars, also known as cool subdwarfs that are much older and cooler in temperature than the Sun
Census of solar neighbourhood
In a study, astronomers conducted a census of our solar neighbourhood to identify how many young, adult and old stars are present. They targeted stars out to a distance of 200 light yearswhich is relatively nearby considering the galaxy is more than 1,00,000 light years across
Solar neighbourhood
It is about 80 light years in radius
