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re: rainbow halos and other

hiya i was hoping u could give me a bit of info about certain rainbows
i have a rainbow in my backyard its allways there no matter what time it is
(but u see it best if there is a bit of shade as when it is very bight its almost clear) if u spray the hose in my backyard
a rainbow appears but not just any rainbow one of these halo rainbows and its stands vertically not horizontally n close to the  ground
some times several more halo rainbows appear in side of it.
i thought that was  strange enough but Ive also noticed that there is one at night around 1am that circles the moon
any info is highly appreciated