NGC 457

Number of stars per data source

	Reference   34 :    1 star
	Reference   35 :    1 star
	Reference   36 :    2 stars
	Reference   41 :    1 star
	Reference  102 :    1 star
	Reference  202 :   19 stars

References

34: Herbig G. H., Spalding J. F.; (1954) Astrophys. J. 121, 118; Axial rotation and line broadening in stars of spectral types F0-K5; 1954ApJ...121..118H
35: Slettebak A.; (1954) Astrophys. J. 121, 653; The spectra and rotational velocities of the bright stars of draper types A3-G0; 1954ApJ...121..653S
36: Slettebak A.; (1963) Astrophys. J. 138, 118; The spectra and axial rotational velocities of the components of 116 visual double-star systems; 1963ApJ...138..118S
41: Faber S. M., Danziger I. J.; (1970) Contr. Kitt Peak Nat. Obs. no. 491; Rotational velocities of evolved A and F stars
102: Abt H.A., Morrell N.I.; (1995) Astrophys. J. Suppl. 99, 135; The relation between rotational velocities and spectral peculiarities among A-type stars; 1995ApJS...99..135A
202: Huang W., Gies D.R.; (2006) Astrophys. J. 648, 580; Stellar Rotation in Young Clusters. I. Evolution of Projected Rotational Velocity Distributions; 2006ApJ...648..580H