prime_meridian#

sunpy.visualization.drawing.prime_meridian(axes, *, rsun: Unit("m") = <<class 'astropy.constants.iau2015.IAU2015'> name='Nominal solar radius' value=695700000.0 uncertainty=0.0 unit='m' reference='IAU 2015 Resolution B 3'>, resolution=500, **kwargs)[source]#

Draws the solar prime meridian (zero Carrington longitude) as seen by the axes observer. Hidden parts are drawn as a dotted line.

Parameters:
  • axes (matplotlib.axes.Axes) – The axes to plot the prime meridian on, or “None” to use current axes.

  • rsun (Quantity) – Solar radius (in physical length units) at which to draw the solar prime meridian. Defaults to the standard photospheric radius.

  • resolution (int) – The number of points used to represent the prime meridian.

Returns:

  • visible (Polygon) – The patch added to the axes for the visible part of the solar equator.

  • hidden (Polygon) – The patch added to the axes for the hidden part of the solar equator.