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How does these rainbows water drops differ? I know it has to do with the size of water drops refracting light.

Is there a formula that determines the type of rainbow?

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Icebow

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Unlike thisquestionsanswer it does not illustrate how the reduction of water drops make less color. Also this ice bow does not follow this rule of thumb in that question.

Illustrations would be great!

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    $\begingroup$ Here you have asked four different questions; please edit your question to specify your problem. I cannot downvote, so I'll just have to leave it. $\endgroup$
    –Eevee
    Feb 22, 2018 at 20:54
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    $\begingroup$ Okay, thanks for clarification. I'll try to answer all four :) $\endgroup$
    –Eevee
    Feb 22, 2018 at 21:11
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    $\begingroup$ I recommend reading some articles on Wikipedia, then asking one question at a time. Your questions should be fairly specific. $\endgroup$
    –Matt Hall
    Feb 23, 2018 at 12:39
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    $\begingroup$ This is a duplicate of an number of questions that have been asked on this site: Fog Bows: [What actually happens to reduce the perceived color in a 'white rainbow“ or ”fog-bow"? ](www.hoelymoley.com/questions/9180/…), [what causes rainbow, the colours and the shape ](www.hoelymoley.com/questions/7480/…). In the stack exchange search area just enter rainbows. $\endgroup$
    –Fred
    Feb 23, 2018 at 15:59
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    $\begingroup$ Possible duplicate ofWhat actually happens to reduce the perceived color in a 'white rainbow" or "fog-bow"? $\endgroup$
    –Fred
    Feb 23, 2018 at 16:00

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