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Table 1

Basic parameters for Tololo 1937-423.

Parameter Data Reference

RA (J2000) 19h40m586
Dec (J2000) –42°1545
Helio. radial velocity 2754 ± 12 km s-1
Distance 41.1 ± 2.9 Mpc
Scale 199 pc-1
A B 0.284
R 25,B 2.4 kpc D99
m B 15.14 ± 0.04a mag GP03
m R 14.25 ± 0.03a mag GP03
M B –17.92 ± 0.03b mag

Notes. RA, Dec, heliocentric velocity, distance, scale, and Galactic extinction taken from NED ( The distance is calculated using a Hubble constant of 73 km s-1 Mpc-1, and taking into account the influence of the Virgo cluster, the Great Attractor, and the Shapley supercluster.


Integrated magnitudes from Gil de Paz et al. (2003), corrected for Galactic extinction;


absolute magnitud in the B-band computed from the tabulated B-magnitude and distance.

Reference. D99 = Doublier et al. (1999); GP03 = Gil de Paz et al. (2003).

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