1. Forum
  2. Usenet
  3. SCI.ASTRO

  • sunspot total area peak relative to sunspot number peak

    From David Dalton@21:1/5 to All on Sat Nov 5 02:03:33 2022
    XPost: sci.space.policy, alt.astronomy.solar, sci.physics
    XPost: alt.astronomy, uk.sci.astronomy

    I seem to recall that the peak in the total surface area
    of sunspots happens after the peak in sunspot number,
    so occurs on the right flank of the sunspot number plot.
    Is that the case?

    --
    David Dalton [email protected] https://www.nfld.com/~dalton (home page) https://www.nfld.com/~dalton/dtales.html Salmon on the Thorns (mystic page) "I'm on my way/And I must flag the last train down" https://www.youtube.com/watch?v=_x0jjvslUuY (Bill Bourne - Baggins)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Tobin@21:1/5 to [email protected] on Sat Nov 5 21:11:19 2022
    XPost: sci.space.policy, alt.astronomy.solar, sci.physics
    XPost: alt.astronomy, uk.sci.astronomy

    In article <[email protected]>,
    David Dalton <[email protected]> wrote:

    I seem to recall that the peak in the total surface area
    of sunspots happens after the peak in sunspot number,
    so occurs on the right flank of the sunspot number plot.
    Is that the case?

    There are data files that might be useful linked from

    https://solarscience.msfc.nasa.gov/greenwch.shtml

    -- Richard

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)