Tau4 Serpentis, Latinized from τ4 Serpentis, is a variable M-type giant star in the constellation of Serpens, approximately 710 light-years from the Earth...

naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one...

designated 15 Serpentis or HD 139074. Tau4 Serpentis, also designated 17 Serpentis or HD 139216. Tau5 Serpentis, also designated 18 Serpentis or HD 139225...