NGC 103

Number of stars per data source

	Reference  431 :    5 stars
	Reference  471 :    6 stars
	Reference  867 :    2 stars
	Reference  891 :   45 stars

References

 431
Haug U.
(1970) Astron. Astrophys. Suppl. 1, 35
UBV observations of luminous stars in three Milky Way fields
1970A&AS....1...35H
 471
Sarg K., Wramdemark S.
(1977) Astron. Astrophys. Suppl. 27, 403
Photoelectric UBV photometry in a Milky Way field in Cassiopeia
1977A&AS...27..403S
 867
Ljunggren B., Oja T.
(1964) Ark. Astron. 3, 439
Photoelectric measurements of magnitudes and colours for 849 stars
1964ArA.....3..439L
 891
Hardorp J.
(1960) Astron. Abh. Hamburg. Bergedorf 5 no. 7
Dreifarben-Photometrie einer Sternhaufengruppe