EntityQ5176378· pop 7· linked from 115 articlesXi OphiuchiSign in to savebinary star system in the constellation OphiuchusConnectionslist of stars in OphiuchusEntityyearEntitysolar massEntityapparent magnitudeEntitysolar radiusEntitysolar luminosityEntitystar catalogueEntityBright Star CatalogueEntityminute and second of arcEntityGliese 644/643EntitystarEntitygalaxyEntitylight-yearEntityconstellationEntitykelvinEntitynebulaEntityCopticEntityradiusEntityexoplanetEntitydigital object identifierEntityCategoriesBayer objectsBinary starsBright Star Catalogue objectsDurchmusterung objectsFlamsteed objectsF-type main-sequence starsGliese and GJ objectsHenry Draper Catalogue objectsHipparcos objectsOphiuchus