A cikin shekaru 7<unk>12 biliyan, Barnard ta Star ya fi tsufa fiye da Sun, wanda yake da shekaru biliyan 4.5, kuma yana iya kasancewa daga cikin taurari mafi tsufa a cikin Milky Way galaxy. Barnard ta Star ya rasa babban adadin makamashi na juyawa, kuma sauye-sauye na lokaci-lokaci a cikin haske ya nuna cewa yana juyawa sau ɗaya a cikin kwanaki 130 (Sun yana juyawa a cikin 25). Ganin shekarunta, Barnard ta Star ya dade yana zaton cewa yana da kwanciyar hankali dangane da ayyukan tauraron. A 1998, masu binciken astronomers sun lura da wani tauraron tauraron dan adam, yana nuna cewa Barnard ta Star ne mai haske. Barnard ta Star yana da maɓallin tauraron V2500 Ophiuchi. A 2003, Barnard ta Star ya gabatar da canjin farko da aka gano a cikin radial velocity na tauraron da ya haifar da ita.
sunan tauraron mai canzawa V2500