天壘城十一(寶瓶座14,14 Aqr)是位於寶瓶座的一顆紅巨星,以佛氏命名法的名稱是寶瓶座14;它也是一顆變星,名稱為寶瓶座IW 。它的變光幅度小於0.1星等,變光週期僅約一天,分類上屬於半規則變星 [3]。
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