Jakarta –
Sun storm a very powerful one broke a hole in the Earth’s magnetic field last week. This condition triggers several aurora epic and rare pink.
It takes some unusual circumstances to create this type of colored light show. One of the lucky people who was able to capture it was Markus Varik, a tour guide of the aurora, in the sky above Troms in Norway on November 3, 2022.
He shared the aurora photos he captured on the Greenland Facebook page.
The process of the occurrence of the aurora
Auroras occur when a strong solar wind (highly energetic charged particles) is ejected from the Sun and hits the Earth, creating a hole in its magnetic field, or magnetosphere.
These charged particles flow through the holes, creating geomagnetic storms that present themselves to us as beautiful auroras. Since the magnetic field is weakest in the polar regions of the Earth, this is where auroras usually occur.
Aurora Borealis and Australis usually appear green, sometimes with a hint of red or purple, because most of the solar wind only reaches altitudes of 100-240 kilometers where there are higher concentrations of oxygen. This makes the oxygen particles “excited” giving them their characteristic green glow.
This time the aurora hits atmospheric nitrogen which can make it appear pink and the nitrogen particles are located at a lower altitude of about 100 kilometers, where most of the solar wind does not reach it.
Hence, it takes very high solar activity to launch charged particles with the force of the storm that occurred on November 3.
A G1-class geomagnetic storm hit Earth last week, opening a hole in the magnetic field for six hours. NOAA’s Center for Outer Space Weather Prediction has issued a warning about a potential Hurricane G1, which while considered “minor” on a scale of 1 to 5, still warns of fluctuations in the power grid, minor impacts on satellites, migrating animals and , of course, epic auroras. .
Don’t worry, quoted by IFL science, On Wednesday (9/11/2022) the cracks in the Earth’s magnetic field are normal. The magnetic field acts as a shield to protect us from solar storms emitted by the sun.
Of note, the Sun is preparing for its most active period in the solar cycle (July 2025) and has been very active since the early days. Opportunity to find aurora That’s good enough right now, but researchers predict the odds will be even better over the next three years.
Watch videos”The James Webb telescope publishes the photo of Aurora on Jupiter“
[Gambas:Video 20detik]
(rns / fay)
