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		| Paper: | 
		The Distance to the Center of the Galaxy: the Current State-of-the-Art in Measuring R0 | 
	 
	
		| Volume: | 
		316, Order and Chaos in Stellar and Planetary Systems | 
	 
	
		| Page: | 
		199 | 
	 
	
		| Authors: | 
		Nikiforov, I.I. | 
	 
	
	
		| Abstract: | 
		The current situation regarding the problem of the Sun–Galactic center distance, R0, is discussed. A new three-dimensional classification of R0 measurements is suggested. Despite the importance of certain of recent results reviewed, overall progress in solving the problem of R0 remains slow. At this time a “best value” for R0, based upon 65 original R0 estimates from 57 works published since 1974, is 7.9 + 0.2 kpc. | 
	 
	
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