Light comes from the sun and passes through a cirrus/cirrostratus cloud.
Contrails also tend to spread out and can be visible for up to an hour in cirrostratus.
It is difficult to detect and is capable of forming halos when the cloud takes the form of thin cirrostratus nebulosus.
The cloud has a fibrous texture with no halos if it is thicker cirrostratus fibratus.
Cirrostratus nebulosus is one of the two most common forms that cirrostratus often takes, with the other being cirrostratus fibratus.
Cirrostratus fibratus is one of the two most common forms that cirrostratus often takes, with the other being cirrostratus nebulosus.
Cirrostratus clouds commonly produce halos because they are composed almost entirely of ice crystals.
When the individual filaments become so extensive that they are virtually indistinguishable from one another, they form a sheet of high cloud called cirrostratus.
