Wolfram|Alpha

Computing...

Input information:

expansion of the universe |  \ntime since big bang | 1 billion years


Cosmological results:

redshift | 5.79\ntime ago (lookback time) | 12.7 billion years\ndistance (comoving) | 27.3 billion ly  (light years)\n8360 Mpc  (megaparsecs)\n2.58×10^23 km  (kilometers)\n1.6×10^23 miles\nfraction of total observable radius | 0.584\nscale factor | 0.147 × current value\nepoch | matter dominated, post-recombination\nradiation temperature | 18.5 K  (kelvins)\nHubble parameter (expansion rate) | 656 km\/s\/Mpc  (kilometers per second per megaparsec)\n(based on 5-year WMAP data and Lambda-CDM model; current universe age: 13.7 billion years)


Timeline:


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