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		| Paper: | 
		A Comparison of ground-based Cepheid P-L Relations with HIPPARCOS Parallaxes | 
	 
	
		| Volume: | 
		167, Harmonizing Cosmic Distance Scales in a Post-Hipparcos Era | 
	 
	
		| Page: | 
		251 | 
	 
	
		| Authors: | 
		Baumgardt, H.; Dettbarn, C.; Fuchs, B.; Rockmann, J.; Wielen, R. | 
	 
	
	
		| Abstract: | 
		The statistical test described by Wielen et al. (1994) is used to derive new zero-points of ground-based Cepheid period-luminosity (PL) and period-luminosity-colour (PLC) relations. Eleven relations are compared with the Hipparcos data. Our results argue for a typical increase of the adopted distance scale by about 8 % ± 8 %. Our zero-point for the PL relation of Caldwell & Laney (1991) is in agreement with that of Feast & Catchpole (1997). | 
	 
	
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