vice.milkyway.annuli
====================

Type : ``list`` [elements of type ``float``]

The radii representing divisions between annuli in the disk model in
kpc. This property is determined by the ``zone_width`` attribute, and
cannot be modified after initialization of a ``milkyway`` object.

.. seealso:: vice.milkyway.zone_width

While this attribute stores the radii representing bounds between
annuli, the ``singlezone`` object corresponding to each individual
annulus is stored as an array in the ``zones`` attribute, inherited
from the ``multizone`` class.

By default, they will be named where "zone0" is the zero'th element of
the ``zones`` attribute, corresponding to the innermost zone. The
second innermost zone will be the first element of the ``zones``
attribute, and by default will be named "zone1", and so on.

Example Code
------------
>>> import vice
>>> mw = vice.milkyway(name = "example", zone_width = 0.2)
>>> mw.annuli
[0.0,
 0.2,
 0.4,
 ...,
 19.6,
 19.8,
 20.0]