Astronomers discover a "solar twin" that was likely born in the same stellar nursery as the Sun. The twin, named HD186302, sits about 184 light-years from Earth and has roughly the same age, metallicity, chemical abundances, and even carbon-isotope ratios as the Sun.

See the source article by following the link below:
Astronomers discover a "solar twin" that was likely born in the same stellar nursery as the Sun. The twin, named HD186302, sits about 184 light-years from Earth and has roughly the same age, metallicity, chemical abundances, and even carbon-isotope ratios as the Sun.