Tauraron walƙiya tauraro ne mai canzawa wanda zai iya fuskantar ƙaruwa mai ban mamaki a cikin haske na 'yan mintoci kaɗan. An yi imanin cewa walƙiya a kan taurarin walƙiya suna kama da walƙiya na hasken rana a cikin cewa suna da nasaba da makamashin magnetic da aka adana a cikin taurarin taurari. Ƙarawar haske yana cikin bakan, daga X rays zuwa raƙuman rediyo. An gano farkon tauraron walƙiya da aka sani (V1396 Cygni da AT Microscopii) a 1924. Duk da haka, sanannen tauraron walƙiya shine UV Ceti, wanda aka fara lura da walƙiya a 1948. A yau ana rarraba irin wannan tauraron walƙiya a matsayin tauraron UV Ceti mai canzawa (ta amfani da gajarin UV) a cikin kundin taurari masu canzawa kamar Janar Catalogue of Variable Stars. Tambaya: Yaya nisan hasken ya kai?
daga hasken X zuwa raƙuman rediyo