The Sun's Color Temperature Throughout The Day

Discussion in 'Light' started by j., Nov 13, 2013.

  1. j.

    j. Guest

    I found an interesting article about how the color temperature of the sun changes throughout the day. It's about how it relates to photography, but some parts might be interesting to us as well.

    Read the rest.
  2. biggirlkisss

    biggirlkisss Member

    Mar 1, 2013
    THE SUn's very high lumen rate makes it much better then what most people produce at him but the uvb and uva make it have less benefits. Blocking out uvb and uva is much more important then blocking out blue.
  3. OP

    j. Guest

    But you can block the blue too, right? So one doesn't really need to choose.
  4. jaa

    jaa Member

    Dec 1, 2012
    I think the 2 coincide. UV rays increase in intensity as the sun gets higher in the sky, and the more atmospheric particles blue light comes in contact with the more it scatters (which is why the sun looks red at dusk and dawn and white at noon and why the sky is blue) - so I'm pretty sure UV light acts the same as blue light in this regard. Even if it doesn't, both have highest concentrations around midday. I think I read something about Peat saying to get outdoor light before 11am and after 3pm which seems like sound advice. I know I usually feel more drained when I get midday sun and more energized when I get sun away from midday.
  5. OP

    j. Guest

    The argument Peat give for avoiding sunbathing at noon was that it causes PUFA release from the tissues. So if one avoided PUFA for a while, maybe it's not that bad. I prefer to go at noon, more vitamin D is generated that way.