emamajek on 21-Dec-2024 07:46:50 GMT about * del Phe B
Although not yet listed in Washington Double Star catalog, the star UCAC3 82-3257 (Gaia DR3 4929469450364517888) has been flagged as a candidate wide binary companion to the bright star del Phe (HIP 7083, HD 9362, HR 440, Gaia DR2 4929469381643567360, Gaia DR3 4929469381645492864) in analyses of the Gaia Data Release catalogs by El-Badry+2018 (2018MNRAS.480.4884E), Tian+2020 (2020ApJS..246....4T), Hartman+2020 (2020ApJS..247...66H), and Kervella+2022 (2022A&A...657A...7K).
Kervella+2022 reports that comparison of the Gaia DR3 astrometry for del Phe and UCAC3 82-3257 are consistent with the companion being at PA=342.80deg, sep=37.30" with respect to del Phe, with tangential velocity within 1.01+-0.05 km/s (and within the predicted escape velocity of 1.71 km/s).
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