View Full Version : Astronomers Refine Distances to our Closest Spiral-Galaxy Neighbors

2013-Jun-10, 03:10 PM
M31 and M33 are two of the nearest spiral*galaxies, and can form the basis for determining distances to more remote spiral galaxies and constraining*the expansion rate of the Universe (the Hubble constant). *Hence the relevance and importance of several new studies that employed*near-infrared*data to establish solid distances for M31 (Andromeda) and M33 (Triangulum) (e.g.,*Gieren et [...]

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