tech
February 4, 2026
Четири Месеца над Санкт Петербургом
Небо изнад Санкт Петербурга недавно је приредило призор који је многе оставио без даха: чинило се као да су се на хоризонту појавила чак четири Месеца истовремено. Иако је на први поглед изгледало као оптичка илузија или дигитална монтажа, реч је о стварном и добро познатом атмосферском феномену који носи име параселена, односно „месечеви пси“ или „лажни Месеци“.
TL;DR
- Paraselene, also known as "moon dogs" or "false moons," is an atmospheric phenomenon where multiple moons appear simultaneously.
- It is caused by moonlight refracting and reflecting through hexagonal ice crystals in high-altitude cirrus clouds.
- The phenomenon is the lunar equivalent of "sun dogs" and is rarer due to weaker moonlight.
- Ideal conditions for paraselene include a full or nearly full moon, very low temperatures, and clouds with specific ice crystals.
- Paraselene often occurs in northern regions like Russia, Scandinavia, and Canada.
- Historically, paraselene was often interpreted as an omen of significant events or bad weather.
- Modern understanding attributes paraselene solely to the interaction of light and ice crystals.
- The formation of cirrus clouds associated with paraselene can indeed precede changes in weather, such as strong winds or precipitation.