RT @EclipseMaps: Look what I just found, the anticipated Thousand Year Canon of Solar Eclipses by @FEspenak! amazon.com/Thousand-Year-… http://t.co/dCmhSU2rlN
RT @EclipseMaps: Look what I just found, the anticipated Thousand Year Canon of Solar Eclipses by @FEspenak! amazon.com/Thousand-Year-… http://t.co/dCmhSU2rlN