• Question: would it be brighter if there was 2 suns

    Asked by m and m 2004 to Dervil, Moises, Pramod, Saoirse, Stephen on 7 Nov 2016.
    • Photo: Dervil Cody

      Dervil Cody answered on 7 Nov 2016:

      Great question! Currently Earth travels around the sun once every 365 days (1 year). But if there were two suns, the Earth might have to travel around both of these. Depending on where Earth is in it’s orbit, it could be receiving light from two suns at once, in which case it would definitely be brighter. There would be other effects too. The length of a year would change, probably the length of day and night too!

    • Photo: Stephen Davitt

      Stephen Davitt answered on 7 Nov 2016:

      Well it would depend on how close the other sun is and if they would both be out at the same time. Would one sun set at the other rises? If so then there would be no difference in brightness but there would be no such thing as darkness.

      Otherwise if there were just two suns in the sky at the same time you would have twice the amount of light and yes twice the brightness.

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