Solar eruptions expected to hit Earth today; geomagnetic storms to be triggered | World News - Hindustan Times
close_game
close_game

Solar eruptions expected to hit Earth today; geomagnetic storm to be triggered

By, Hindustan Times, New Delhi
Feb 09, 2022 07:12 AM IST

The forecast is based on the data collected by Solar and Heliospheric Observatory mission’s Large Angle and Spectrometric Coronagraph. The Center of Excellence in Space Sciences said that a filament eruption was observed on the Sun south of disk center on February 6.

Earth is set to be hit by a fresh solar eruption on Wednesday and Thursday, that could trigger a geomagnetic storm, researchers have said. This comes just a week after a similar moderate geomagnetic storm was triggered by the powerful eruptions hurtled by the Sun towards the Earth.

Solar flare are powerful bursts of radiation from the Sun.(Representative image)
Solar flare are powerful bursts of radiation from the Sun.(Representative image)

According to tweets by the Center of Excellence in Space Sciences (CESS) under the Indian Institute of Science Education and Research, a filament eruption was observed on the Sun south of disk center on February 6. The eruption was recorded by the Solar and Heliospheric Observatory (SOHO) mission’s Large Angle and Spectrometric Coronagraph (LASCO), said CESS.

Unlock exclusive access to the latest news on India's general elections, only on the HT App. Download Now! Download Now!

SOHO is a joint mission by Nasa and the European Space Agency launched in 1995 to study the Sun. It routinely identifies the coronal mass ejections.

The CESS further said that the Earth will be impacted by the moderate geomagnetic storm in the range 451-615 kilometres per second from February 9 (05:48 UT) to February 10 (09:53 UT), which translates to 11.18am IST on February 9 to 3.23pm IST on February 10.

“The impact is unlikely to be very hazardous. Moderate geomagnetic storms are likely,” the CESS further said on Twitter.

The solar storm could also touch off geomagnetic activity that could make the Northern Lights visible.

What is a geomagnetic storm?

According to National Oceanic and Atmospheric Administration’s (NOAA’s) Space Weather Prediction Center (SWPC), a geomagnetic storm is a major disturbance in Earth’s magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding the planet.

These storms - triggered by powerful blasts of radiation called solar flare - can disrupt some high-frequency radio broadcasts and low-frequency navigation. They also produce major changes in currents, plasma and fields in Earth’s magnetosphere.

The solar wind conditions that are effective for creating geomagnetic storms are sustained (for several to many hours) periods of high-speed solar wind.

What is coronal mass ejection (CME)?

This is a large expulsion of plasma and magnetic field from the Sun’s corona. CMEs travel outward from the Sun at speeds ranging from slower than 250 kilometers per second (km/s) to as fast as near 3000 km/s. The fastest Earth-directed CMEs can reach our planet in as little as 15-18 hours. Slower CMEs can take several days to arrive.

Tell us what your First Vote will stand for in a short video & get a chance to be featured on HT’s social media handles. Click here to know more!

Get Current Updates on India News, Elections 2024, Lok sabha election 2024 voting live , Karnataka election 2024 live in Bengaluru , Election 2024 Date along with Latest News and Top Headlines from India and around the world.
SHARE THIS ARTICLE ON
Share this article
SHARE
Story Saved
Live Score
OPEN APP
Saved Articles
Following
My Reads
Sign out
New Delhi 0C
Wednesday, May 22, 2024
Start 14 Days Free Trial Subscribe Now
Follow Us On