WISEA J052305.94-015356.1 may be an extreme subdwarf of T-type

By analyzing the data from various surveys, a British amateur astronomer has found that a recently discovered star, designated WISEA J052305.94-015356.1, may be a representative of a rare class of subdwarfs--an extreme subdwarf of the T spectral class (esdT). The finding is reported in a paper published July 23 on arXiv.org.