Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Dipole Moments of the Planets and the sun

  1. Oct 30, 2008 #1
    I am wondering if there is a source of the magniude of the Dipole moments of all the planets and the sun, m.

    m(earth) is 8*10^22 A*m^2.

    The Magnetic Field and the Electric Field such that:

    Br = Mu0/4/pi*2*m*cos(Theta)/r^3
    Btheta = Mu0/4/pi*m*sin(Theta)/r^3
    Mphi = 0
    Er = 1/4/pi/Epsilon*2*m*cos(Theta)/r^3
    Etheta = 1/4/pi/Epsilon*m*sin(Theta)/r^3
    Ephi = 0

    I know that they actually fluctuate due to changing solar activities,ie solar flares and planetary topograpy but I want the average magnitudes just the same. Does anyone have this data or website?
     
  2. jcsd
  3. Oct 31, 2008 #2
    Last edited: Oct 31, 2008
  4. Oct 31, 2008 #3
    planetary magnetic dipole moments...



    The Systeme International (S.I.) units for planetary magnetic dipole moments is:
    [tex]\mu = \frac{\text{N} \cdot \text{m}}{\text{T}}[/tex]
    Newton-meters per Tesla.

    All the currently available planetary magnetic dipole moments are available at creationwiki.org.

    Planetary magnetic dipole moments (at present):
    0 3.5 * 10^29 N-m/T Sol
    1 3.8 * 10^19 N-m/T Mercury
    2 8.0 * 10^17 N-m/T Venus
    3 7.98 * 10^22 N-m/T Earth
    4 2.1 * 10^18 N-m/T Mars
    5 N/A Ceres
    6 1.55 * 10^27 N-m/T Jupiter
    7 4.6 * 10^25 N-m/T Saturn
    8 3.0 * 10^24 N-m/T Uranus
    9 1.5 * 10^24 N-m/T Neptune
    10 N/A Pluto

    In Terra units:
    0 4385965
    1 4.761905E-04
    2 1.002506E-05
    3 1
    4 2.631579E-05
    5 N/A
    6 19423.56
    7 576.4411
    8 37.59398
    9 18.79699
    10 N/A

    Interesting to note that the planetary magnetic moments decay with time.

    Lunar: 1.3 * 10^15 N-m/T

    Reference:
    Sun - Creationwiki
    Solar System - scale image - Wikipedia
    Solar system moons - scale image - Creationwiki
    Ceres-Earth-Moon comparison - Wikipedia
    Table of the planets - NASA
     
    Last edited: Oct 31, 2008
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Dipole Moments of the Planets and the sun
  1. Sun on planet Earth (Replies: 4)

Loading...