For the first time in nearly 5,000 years of observations, researchers have fully cataloged the optical illusion created in the sky as light shines through ice crystals known as atmospheric halos.
Atmospheric halo ‘inventory’ descriptions are often seen in atmospheric optical illusions from known sources as well as shedding light on rare halos, including original ones that are currently a mystery.
The accumulation of halos is caused by water ice crystals smaller than 10 micrometers in Atmosphere, The properties of these atmospheric illusions, such as their color or whether they have arcs, spots, or white rings, are determined by the size and orientation of the snow scatter and the path light leads to these crystals. Often, the type of crystals behind the scattering can be identified by the shape of the halo they form.
These atmospheric illusions have been documented by humanity since at least the Babylonian era – which began around 1895 BCE – when the phenomenon was detailed on cuneiform tablets. However, thanks to the availability of cameras as a result of the proliferation of mobile phones, scientists have never had so much data on these events at the tips of their fingers.
In addition to an in-depth catalog of halos, this new research – which is based on observations collected by the end of 2021 – highlights gaps in the study of the phenomenon. The authors behind the inventory also offer promising methods for both their further observation and processing of the collected data, urging the public to be involved in recording these events using their phones and digital photography.
The complete catalog divides the phenomenon into 119 different types and also details conditions such as the temperature and humidity required to create them.
Halos seen at least once a year were defined as ‘usually observed’ and usually formed by the scattering, refraction and focusing of light from the Sun or in a disordered, horizontal or vertical orientation. are reflected from the Moon by hexagonal ice crystals in the
Another category – the ‘rare halo’ – which includes atmospheric illusions, accounting for about one percent of all observations, is further divided into halos with known origins and unknown and exotic sources.
Scientists from the Finnish Geospatial Research Institute and Ph.D. Jarmo Moillainen, a student at the University of Helsinki, said Statement (opens in new tab), “However, some documented alien halos cannot be explained in this way.”
Moilanen, who developed the list of atmospheric halos with Maria Gritsevich, a professor at the University of Helsinki, gave some examples of such exotic halos. “Mysteries of the Origin of the Elliptical Halo and bottlinger rings (opens in new tab) have not been resolved since their discovery in the early 20th century,” said the researcher. “Mysterious people have the so-called Moillainen Arch (opens in new tab)Which I first discovered in 1995.”
The researchers suggest that the key to producing the mysterious atmospheric halo may be ice crystals with odd shapes or crystals of other minerals scattered in the air.
Gritsevich said research suggests the unusual shape of the alien halo is caused by human-caused factors, such as atmospheric emissions or strong electromagnetic fields generated by high voltage power lines. These factors could disrupt the orientation of the ice crystals in the air, possibly giving rise to the alien halo, he said.
“In order to unravel such mysteries, samples of the ice crystals that make up the exotic halo were collected exclusively in the atmosphere, but this experience also raised more questions than answers,” Gritsevich said in the statement. Use it to solve this mystery.
“This observation proves that clouds of hexagonal crystals of water ice or other minerals are present in the Martian atmosphere,” says Maria Gritsevich. “There are suggestions that the halo may be formed by carbon dioxide crystals.”
He said mathematical modeling of the factors that create the halo could provide valuable information about the state of the Martian atmosphere.
The research of both was published in Journal of Quantitative Spectroscopy and Radiative Transfer, (opens in new tab)