What does parhelion mean?
A parhelion, also known as a sun dog, is a bright spot that appears in the sky when sunlight passes through ice crystals in the atmosphere at a specific angle. This phenomenon occurs when the sun is low on the horizon and the air is filled with ice crystals, typically in cold climates. Parhelions are often seen as patches of light on either side of the sun and can be quite striking. The term is derived from the Greek words 'para' meaning 'beside' and 'helios' meaning 'sun'. Parhelions are relatively rare and are considered a beautiful example of atmospheric optics.
nounA parhelion is a bright spot in the sky, often appearing as a patch of light on either side of the sun, caused by the refraction of sunlight through ice crystals in the atmosphere.
- A bright spot in the sky caused by refraction of sunlight through ice crystals.
- A rare atmospheric optical phenomenon.
"The hikers were amazed to see a parhelion appear in the sky as they climbed to the top of the mountain."
"The photographer captured a stunning image of a parhelion in the morning sky."
"The parhelion was visible for only a few minutes before it disappeared."
The plural form is used when referring to multiple instances of the phenomenon.
"The scientists observed several parhelions in the sky during their experiment."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of parhelion
The term 'parhelion' originates from the Greek words 'para', meaning 'beside', and 'helios', meaning 'sun'. It has been used in the English language since the 17th century to describe this atmospheric phenomenon. The study of parhelions and other optical effects in the atmosphere is an important area of research in atmospheric science.
How parhelion is actually used
This term is often used in the context of atmospheric science and optics. It has a somewhat formal tone.