Atmospheric optics belongs
to the group other than clouds, the so called photometeors.
They are caused
by reflection and refractions of (small) water droplets or ice crystals by
light. They include: halo phenomena, corona, irisation, glory, rainbow
(and fogbow), Bishop's ring, mirage, shimmer, scintillation, green flash and
twillight colors. In my area the halos are the most frequent optics
sometimes up to a couple of times a week.
Date read as:
year-month-day-hour and minutes in CET (Central European Time). © SkyStef. |
