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Table 8

Modulus and distance estimates for NGC 1904 in the literature.

Reference μ0 [mag] Distance [kpc] Method

This work 15.63  ±  0.06 13.35  ±  0.35 Fourier decomposition of RR0 light curves
This work 15.54 12.87 Fourier decomposition of RR1 light curves
Zoccali & Piotto (2000) 15.52 12.53 Theoretical luminosity function
Ferraro et al. (1999) 15.63 13.37 Magnitude of the horizontal branch
Kravtsov et al. (1997) 15.57a 13.00 CMD analaysis
Harris (1996) 12.9 Globular cluster catalogue
Zinn (1980) 15.62a 13.29 Q39 spectral index
Rosino (1952) 16.25 17.78 Median magnitude of RR Lyrae

Notes. 

(a)

Assuming the values E(B − V) = 0.01 and RV = 3.1.

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