Sextans B (inozivikanwawo se UGC 5373 uye DDO 70) igwara renyeredzi risina kurongeka iro rinogona kunge riri chikamu cheBoka reNzvimbo, kana kuti riri kunze kwaro. Sextans B iri mamirioni 4.44 emakore-chiedza kubva kuPasi uye nekudaro ndeimwe yenhengo dziri kure kwazvo dzeBoka reNzvimbo, kana iri nhengo. Inoumba vaviri nevavakidzani vayo galaxy Sextans A. Iyo mhando Ir IV-V galaxy zvinoenderana negalaxy morphological classification scheme. Sextans B inogona zvakare kuve nehukama hwekukweva nemapoka enyeredzi NGC 3109 uye iyo Antlia Dwarf. Sextans B ine huwandu hwakaenzana hwenyeredzi, asi iyo interstellar svikiro mairi inogona kunge iri muhomogeneous. Hukuru hwayo hunofungidzirwa kuve ingangoita ka2 × 108 yeZuva, iri mu107 × 5.5 yemakore-chiedza kubva kuPasi uye nekudaro ndeimwe yenhengo dziri kure kwazvo dzeBoka reNzvimbo.
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