HR 1956, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line April 21, 2009.
Note of HR 1956, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line April 21, 2009.
CCDM J05396-3404,database entry, J. Dommanget and O. Nys (2002) Catalogue of the Components of Double and Multiple Stars, Accessed on line April 21, 2009.
simbad.u-strasbg.fr
* alf Col -- Be Star, database entry, SIMBAD. Accessed on line April 21, 2009. Kesalahan pengutipan: Tanda <ref> tidak sah; nama "sb0" didefinisikan berulang dengan isi berbeda