The Sun Rises In The East & Sets In The West - But Does It?

Discussion in 'Off-Topic Discussion' started by shiney, Jul 16, 2014.

  1. shiney

    shiney President, Grumpy Old Men's Club Staff Member

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    This is a serious question that I hope our astronomy buffs (or anyone else) can answer.

    The saying gives the impression that the sun travels 180 degrees through our view of the sky, but my rough observation of it seems to show otherwise.

    The back of our house faces almost due south (the survey for solar panels showed that we're three degrees off due south) but, at this time of year, the sun is shining on the front of our house for about two hours each morning (possibly more if the trees weren't in the way). In the evening it appears to go below our horizon, of trees, roughly in line with our roof (I don't know if the sun would still hit our roof for any longer than that).

    So, it seems to me that we get more than 180 degrees of sun in our sky.

    This seems logical as we have daylight for much longer in the summer than we have in the winter - and I don't think we revolve at a slower pace in the summer! :heehee:

    Answers on a postcard please. :)
     
  2. pamsdish

    pamsdish Total Gardener

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    I cannot say where it definitely rises, as it appears over the mountain, but it definitely "sets" further round than exact West, I suppose the only days dead East and West should be the equinox.
     
  3. HarryS

    HarryS Eternally Optimistic Gardener

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    Shiney this shows the track of the sun for different locations and times of the year . Say in London on the 21st of June you see about a 270° arc . If you click the pointer onto Greenland say , you get 360° arc.( Sun never sets in June )
    Next put the calendar to 20 December and see how much arc of sun you get then !
    Noticed this last year we were camping on Morecambe bay in June . The sun rose behind the tent at 4AM , bright as midday ! Noticed it tracking allover the bay during the day and setting way over to the right , about 300° , it has taken me over 60 years to notice this !

    http://www.suncalc.net/#/51.508,-0.125,2/2014.06.20/15:32
     
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    • shiney

      shiney President, Grumpy Old Men's Club Staff Member

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      Thanks :blue thumb: I think that answers everything. :)
       
    • Scrungee

      Scrungee Well known for it

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      • shiney

        shiney President, Grumpy Old Men's Club Staff Member

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        I've just checked on that site and Shineyland gets 180 degrees of sunshine on the 19th March and the 24th September.
         
      • HarryS

        HarryS Eternally Optimistic Gardener

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        • pamsdish

          pamsdish Total Gardener

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          Would that be around the time of the equinox then Shiney. :noidea:
           
        • JWK

          JWK Gardener Staff Member

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          I reckon that would be the case, all down to the fact the earth is tilted at 23.4° - that's what gives us the seasons and why day lengths and observations such as Shiney's vary during the year.
           
        • shiney

          shiney President, Grumpy Old Men's Club Staff Member

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          Yes, John is correct :). Equinox is March and September and solstice is June and December. :blue thumb:
           
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