Fundamental plane (spherical coordinates)

For the concept in extragalactic astronomy, see Fundamental plane (elliptical galaxies).

The fundamental plane in a spherical coordinate system is a plane of reference that divides the sphere into two hemispheres. The geocentric latitude of a point is then the angle between the fundamental plane and the line joining the point to the centre of the sphere.[1]

For a geographic coordinate system of the Earth, the fundamental plane is the Equator.

Astronomical coordinate systems have varying fundamental planes:[2]

See also

References

  1. ^ Rogers, Lucy (2008), It's ONLY Rocket Science: An Introduction in Plain English, Springer, p. 136, ISBN 9780387753782.
  2. ^ Newcomb, Simon (1906). A Compendium of Spherical Astronomy with Its Applications to the Determination and Reduction of Positions of the Fixed Stars. Macmillan. p. 92..
  3. ^ "NASA - Besselian Elements of Solar Eclipses". NASA. Retrieved 13 August 2022.


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