Recent Articles

I’m Seeing Double…Rainbows!

Storms are known to rain down all sorts of atmospheric goodies: hail, lightning, snow...ummm...rain. And rainbows. Two of them. Apparently.


Paula Graham kept her eye on the sky and witnessed something that would cause an average mortal's cranium to crack open while their brain explodes into gooey globules.


Water is a wacky substance! It can shape-shift into three states: solid, liquid or gas, and each state exhibits vastly different powers.


Water droplets, for example, have the power to refract sunlight and reveal a prismatic curtain of colors: red, orange, yellow, green, blue, indigo, violet. We call these aerial ethereal splotchy hues—rainbows.


Imagine something this: A sunbeam enters a water droplet, and then colorful rays jiggle inside of the spherical H2O domain. Each colorful ray exits at slightly different angles and speeds, which causes a rainbow to manifest out of thin air water droplets.


Is that the full story? Absolutely not. That’s the typical over simplification—considering it takes many sets of water droplets to make a rainbow. Not just one.


A single water droplet does not emit all of the colors of the rainbow. Each set of water droplets emits its own specific color.


Secondary Rainbow (Crop)


** Super Fun Fact ** The Sun must be situated behind the observer in order for a rainbow to become visible. Don’t believe me? Go outside, put the Sun toward your back, and turn on your garden hose! You can make your very own rainbow!…don’t have a hose? Grab your 12 gauge shotgun and lock ‘n’ load! Ta-da! Welcome to the magic of science.


So…what the hell is going on with the mystical double rainbow? Is it simply leprechaun magic? Yes! I mean…absolutely not! Double rainbows occur when sunlight reflects twice inside of a curtain of falling water droplets. That’s it. Well. Not really.


Angles play an important role…and…hey! Wait a second.


Did you notice something strange? Let’s take another gander at Paula’s image:


Double the fun!


Do you see it? Take a really close look.


The secondary bow has its colors reversed! The blueish hues sit on top of the arc while the red hues sit toward the bottom. The secondary bow also appears diffuse, dimmer and larger. But I’m sure you noticed that.


Wait!…did you notice something else?


The sky between the primary arc and the secondary arc is darker. This ominous effect is known as Alexander’s dark band. The primary or secondary arc reflects light and makes the sky between the bows appear darker.


There are a variety of different rainbows:


  1. Circular Rainbows

  2. Double Rainbows (Obviously)

  3. Lunar Rainbows

  4. Single Band Rainbows

  5. Supernumerary Rainbows

  6. Red Rainbows

  7. Twinned Rainbows

  8. Rainbow Wheels



Whoa. Wait a minute. Once you start considering all the angles, speed, dispersion, refraction, water droplet geometry…perhaps leprechaun magic is really at work here! Is there really a pot of gold at the end of every rainbow? Nope! Just a big pot of glittering science.


You’re welcome.


Thanks for submitting your double rainbow photograph Paula! Keep your eye on the sky!


** Do yourself a favor: Click here and subscribe to Paula’s photography blog **


** Hey! Do you have an astro image? Everyone wants to see it! Send FlyTrapMan your photograph and you’ll become an eye on the sky!—**

About FlyTrapMan (261 Articles)
I have no idea what I'm doing.

9 Comments on I’m Seeing Double…Rainbows!

  1. Oh, my God, oh, my God, a double rainbow! What does it mean?! Oh, my God!!

    Remember the Double Rainbow guy?

    I loved your post, and that cute JoJo kid — I want to squeeze his cheeks. 😀

    Beautiful photo, Paula!

    What was that 12 gauge shotgun link? It just took me back to JoJo.

    Liked by 1 person

  2. Wow, that is one hell of a lot more info than I would have managed with this shot…amazing as it was..Well done, Mr Fly.

    Liked by 2 people

    • Thanks for submitting the image! I don’t encounter many rainbows, and never seen a double rainbow. I tend to see sundogs, halos, arcs, and similar atmospheric manifestations.

      Liked by 1 person

Say something. Come on. You know you want to.

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: