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Mar 17, 2019 at 13:30 vote accept Megan mars
Mar 16, 2019 at 15:29 comment added Megan mars so do we use standard candles like first we find the luminosity of a nearby cepheid and then once we find it we identify cepheids at a much farther distance and then we consider their luminosity to be same as the ones we found close by? thus determining the distance to the galaxy?
Mar 16, 2019 at 11:59 history edited user89220 CC BY-SA 4.0
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Mar 16, 2019 at 11:50 history answered user89220 CC BY-SA 4.0