The Distance of the Virgo Cluster

Abstract

Six different distance determination methods of Virgo cluster members yield a mean distance modulus of (m-M)^0(Virgo) = 31.60 +/- 0.09 (20.9 +/- 0.9 Mpc). This value can be carried out to > 10,000 km/s by means of 31 clusters whose distances are well known relative to the Virgo cluster. They yield H_0 = 56 +/- 4 (random error) +/- 6 (systematic error), independent of local streaming motions.

13 pages, 2 figures, 5 tables, LaTeX 2.09. To appear in the CD-ROM Proceedings of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, Dec. 14-18, 1998