"can anyone answer im looking to with no results"
The reason you're not getting any answers is that no one "studies rainbows". Rainbows have been essentially completely explained, and we know just about everything there is to know about them, so as you can imagine there's not a great deal of interest in studying them.
However, as always, for scientific terminology Latin is our friend. If there were such a thing as a scientist who studied rainbows, the term would be "iridologist." It sounds almost like a real science, doesn't it?
There's only one problem: the term is already in use for a pseudo-scientific medical practice (aka "quackery") in which the patterns and colors in the iris of the eye are used to pretend to "diagnose" medical conditions. So any putative rainbow-studiers would have to come up with another term, or be forced to constantly explain that they were from an entirely different pseudo-science.
A person who studies rainbows is called a "rainbowologist."
Rainbows are studied by scientists called atmospheric scientists or meteorologists who specialize in studying the formation and behavior of rainbows in the atmosphere. They use principles of physics, optics, and meteorology to understand how rainbows are formed and why they appear in certain conditions.
A person who studies optometry is called an optometry student or an optometry student.
By the majority of English speakers, they're called "rainbows".
A person who studies the planets and stars is an astrologist.
A person who studies rainbows is called a "rainbowologist."
Rainbows are studied by scientists called atmospheric scientists or meteorologists who specialize in studying the formation and behavior of rainbows in the atmosphere. They use principles of physics, optics, and meteorology to understand how rainbows are formed and why they appear in certain conditions.
a person that studies gems is called a gemologist.
The Person Who studies about mamals , he is called mamalogist....
A person who studies animals is called a zoologist.
A person who studies the mind and behavior is called a psychologist.
A person who studies or writes history is called a historian.
A person who studies physics is called a physicist, a person who studies chemistry is called a chemist, and a person who studies biology is called a biologist.
Alligators of reptiles, so one who studies them is called a herpetologist.
A person who studies optometry is called an optometry student or an optometry student.
A person who studies a lot is often called a "bookworm" or a "knowledge enthusiast."
a culturologist. Just kidding its called a phallololigist