Author Topic: November Full "Super Moon" tomorrow, question.  (Read 627 times)

Mark

  • Administrator
  • Observer
  • *****
  • Posts: 83
    • View Profile
November Full "Super Moon" tomorrow, question.
« on: November 13, 2016, 04:37:22 PM »
Tomorrow's full moon will be the closest full moon since 1948.  But still, 7℅ larger apparent size than an average full moon.  It's brightness is being reported to be a 15℅ increase over the average.  Why double the brightness than the increae in apparent size?

John Pierce

  • WebHack
  • Administrator
  • Observer
  • *****
  • Posts: 272
    • View Profile
Re: November Full "Super Moon" tomorrow, question.
« Reply #1 on: November 13, 2016, 04:39:31 PM »
brightness is a function of area, which is pi*r^2 ....  so if it is 1.07 times the diameter, its 1.145 times the area.

buynoski

  • Observer
  • Posts: 24
    • View Profile
Re: November Full "Super Moon" tomorrow, question.
« Reply #2 on: November 14, 2016, 06:52:10 AM »
Does the Moon have any limb darkening?  There might be a correction for that, although
relative to a "regular" full moon, it's probably a small one.