The Local Group and Other Neighboring Galaxy Groups

  title={The Local Group and Other Neighboring Galaxy Groups},
  author={Igor D. Karachentsev},
  journal={The Astronomical Journal},
Over the last few years, rapid progress has been made in distance measurements for nearby galaxies based on the magnitude of stars on the tip of the red giant branch. Current CCD surveys with the Hubble Space Telescope (HST) and large ground-based telescopes bring ~10% accurate distances for roughly a hundred galaxies within 5 Mpc. The new data on distances to galaxies situated in (and around) the nearest groups—the Local Group, M81 Group, Cen A/M83 Group, IC 342/Maffei Group, Sculptor filament… 
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