Crawford, D. L.; Barnes, J. V.; Golson, J. C. (1971), «Four-color, H-beta, and UBV photometry for bright B-type stars in the northern hemisphere», The Astronomical Journal76: 1058, Bibcode1971AJ.....76.1058C, DOI:10.1086/111220
Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), «Masses and luminosities of O- and B-type stars and red supergiants», Astronomische Nachrichten331 (4): 349, Bibcode2010AN....331..349H, DOI:10.1002/asna.200911355
Crawford, D. L.; Barnes, J. V.; Golson, J. C. (1971), «Four-color, H-beta, and UBV photometry for bright B-type stars in the northern hemisphere», The Astronomical Journal76: 1058, Bibcode1971AJ.....76.1058C, DOI:10.1086/111220
Wielen, R. m. fl.. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions, Astronomisches Rechen-Institut Heidelberg, Bibcode1999VeARI..35....1W
Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), «Masses and luminosities of O- and B-type stars and red supergiants», Astronomische Nachrichten331 (4): 349, Bibcode2010AN....331..349H, DOI:10.1002/asna.200911355