Trumpler 28

Number of stars per data source

	Reference  371 :    8 stars
	Reference  492 :    1 star

371: The P.S., Stokes N.; (1970) Astron. Astrophys. 5, 298; A study of the southern open clusters Tr 27, Tr 28, NGC 6416 and NGC 6425; 1970A&A.....5..298T
492: Terzan A., Bernard A.; (1981) Astron. Astrophys. Suppl. 46, 49; A photometric catalogue of stars in the direction of the bright cloud B in Sagittarius; 1981A&AS...46...49T