Here’s a breakdown of the facts provided in the text, answering potential questions someone might have after reading it:
What are sundogs?
* Sundogs are colored spots of light that appear due to the refraction (bending) of light through ice crystals in the atmosphere.
* They are also known as mock suns or parhelia (“with the sun”).
* They typically appear to the right, left, or both sides of the sun.
* They often display a rainbow-like spectrum (red closest to the sun, blue on the outside), but can also appear white.
* Sometimes they look like extra suns.
How do sundogs form?
* Ice crystals in thin, high clouds act like prisms, splitting sunlight into its component colors.
* This is different from how rainbows form, which require water droplets.
When and where are sundogs most likely to be seen?
* Near sunrise or sunset, when the sun is low on the horizon.
* During winter,when ice crystals are more common.
* Cold weather conditions (like those experienced in the Chicago area with wind chills as low as -25 degrees) are ideal.
What are sundogs related to?
* Sun halos and pillars – all are considered “atmospheric optical effects.”
