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Baines, Ellyn K.; Armstrong, J. Thomas; Schmitt, Henrique R.; Zavala, R. T.; Benson, James A.; Hutter, Donald J.; Tycner, Christopher; Belle, Gerard T. van (2017), "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer", The Astronomical Journal, 155 (1), s. 30, arXiv:1712.08109 $2, Bibcode:2018AJ....155...30B, doi:10.3847/1538-3881/aa9d8b.
Huang, Y.; Liu, X.-W.; Yuan, H.-B.; Xiang, M.-S.; Chen, B.-Q.; Zhang, H.-W. (2015), "Empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs and giants based on interferometric data", Monthly Notices of the Royal Astronomical Society, 454 (3), ss. 2863-2889, arXiv:1508.06080 $2, Bibcode:2015MNRAS.454.2863H, doi:10.1093/mnras/stv1991.
Massarotti, Alessandro; ve diğerleri. (Ocak 2008), "Rotational and radial velocities for a sample of 761 HIPPARCOS giants and the role of binarity", The Astronomical Journal, 135 (1), ss. 209-231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209.
Baines, Ellyn K.; Armstrong, J. Thomas; Schmitt, Henrique R.; Zavala, R. T.; Benson, James A.; Hutter, Donald J.; Tycner, Christopher; Belle, Gerard T. van (2017), "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer", The Astronomical Journal, 155 (1), s. 30, arXiv:1712.08109 $2, Bibcode:2018AJ....155...30B, doi:10.3847/1538-3881/aa9d8b.
Huang, Y.; Liu, X.-W.; Yuan, H.-B.; Xiang, M.-S.; Chen, B.-Q.; Zhang, H.-W. (2015), "Empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs and giants based on interferometric data", Monthly Notices of the Royal Astronomical Society, 454 (3), ss. 2863-2889, arXiv:1508.06080 $2, Bibcode:2015MNRAS.454.2863H, doi:10.1093/mnras/stv1991.
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iau.org
Naming Stars, IAU.org, 11 Nisan 2020 tarihinde kaynağından arşivlendi, erişim tarihi: 16 Aralık 2017.
"HD 20781". SIMBAD. Centre de données astronomiques de Strasbourg. Erişim tarihi: 13 Eylül 2014.Arşivlenmesi gereken bağlantıya sahip kaynak şablonu içeren maddeler (link)
web.archive.org
Naming Stars, IAU.org, 11 Nisan 2020 tarihinde kaynağından arşivlendi, erişim tarihi: 16 Aralık 2017.