NGC 129

Number of stars per data source

	Reference   46 :    4 stars
	Reference   90 :   12 stars

46: Schmidt E. G.; (1978) Astrophys. J. 219, 543; Stellar pulsation and the abundance of helium; 1978ApJ...219..543S
90: Turner D.G., Forbes D., Pedreros M.; (1992) Astron. J. 104, 1132; Galactic clusters with asociated cepheid variables. II. NGC 129 and DL Cassiopeiae; 1992AJ....104.1132T