HD 20652

내용

Mesures d'etoiles doubles faites a Nice. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978A&AS...33..275M&db_key=AST
The Spectra and Rotational Velocities of the Bright Stars of Draper Types A3-G0. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121..653S&db_key=AST
Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1953ApJ...117..313J&db_key=AST

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