Noun
CVZ (uncountable)
Abbreviation of cortivazol.
There is a so-called continuous viewing zone (CVZ), at roughly 90° to the plane of Hubble's orbit, in which targets are not occulted for long periods. Source: Internet
Because the limb of the Earth is always within about 30° of regions within the CVZ, the brightness of scattered earthshine may be elevated for long periods during CVZ observations. Source: Internet
Due to the precession of the orbit, the location of the CVZ moves slowly over a period of eight weeks. Source: Internet