HD 171034, also named Alwasl, is a star in the constellation Sagittarius, about distant. With an apparent magnitude of 5.28, it is faintly visible to the naked eye under good viewing conditions. Its stellar classification is variously reported as B2III/IV or B2IV/V, indicating a B-type star of uncertain luminosity class. It is a possible Beta Cephei variable or slowly pulsating B-type star. A companion star at a separation of was first reported in 2010.
In traditional Arab astronomy, al-Waṣl (), meaning the joint or connection, refers to the region between two asterisms in Sagittarius representing groups of ostriches – al-Naʿām al-Wārid "the incoming ostriches" and al-Naʿām al-Ṣādir "the outgoing ostriches". The IAU Working Group on Star Names adopted the name Alwasl for this star on 13 August 2026.
References Catalog in VizieR
External links al-Waṣl (الوصل) in the All Skies Encyclopaedia