Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. (March 2014). «A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun». Astronomy and Astrophysics563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.
doi.org
dx.doi.org
Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. (March 2014). «A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun». Astronomy and Astrophysics563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.
harvard.edu
adsabs.harvard.edu
Porto de Mello, G. F.; da Silva, R.; da Silva, L.; de Nader, R. V. (March 2014). «A photometric and spectroscopic survey of solar twin stars within 50 parsecs of the Sun; I. Atmospheric parameters and color similarity to the Sun». Astronomy and Astrophysics563: A52. Bibcode:2014A&A...563A..52P. arXiv:1312.7571. doi:10.1051/0004-6361/201322277.
nasa.gov
nssdc.gsfc.nasa.gov
Williams, D.R. (2004). «Sun Fact Sheet». NASA. Consultado el 23 de junio de 2009.