vice.milkyway.zone_width
========================

Type : ``float``

Default : 0.5

The width of each annulus in kpc. This value can only be set at
initialization of the ``milkyway`` object.

.. seealso:: vice.milkyway.annuli

Example Code
------------
>>> import vice
>>> mw = vice.milkyway(name = "example", zone_width = 0.2)
>>> mw.zone_width
0.2