Menacing Geomagnetic Storm to hit Earth tomorrow as Sun unleashes multiple CMEs

    A strong G-2 class geomagnetic storm is expected to hit Earth tomorrow, October 4. Will it have a serious impact?
    By: HT TECH
    | Updated on: Oct 03 2022, 22:51 IST
    In Pics: Asteroid alert! Menacing 33-foot space rock hurtling towards Earth today
    1/5 The month of September witnessed nearly 40 asteroid flybys and it seems like October will follow the same trend, with 5 asteroids already passing by within 2 days. Although most of them have passed safely, these asteroids could have threatened Earth if they had deviated even slightly from their path due to the pull from Earth’s gravitational field. (Pixabay)
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    2/5 NASA’s Planetary Defense Coordination Office, which is responsible for keeping an eye on all Near-Earth Objects (NEOs) has warned that an asteroid named Asteroid 2022 SL28 is hurtling towards the planet today, October 3. (NASA)
    3/5 he asteroid will make its closest approach to Earth at a distance of just 1.6 million kilometers, according to NASA. It is already on its way towards the planet, travelling at a staggering speed of 47592 kilometers per hour. Nasa has classified Asteroid 2022 SL28 as a “Potentially Hazardous Object” due to the close proximity with which it will pass by Earth. (Pixabay)
    4/5 NASA currently has a NEO Observations Program in place to track, and characterize at least 90 percent of the NEOs that are 140 meters or larger in size. Most of the asteroids are observed with the help of the NEOWISE Project which repurposed NASA’s Wide-field Infrared Survey Explorer to work as a survey telescope and scan the sky for Near-Earth Objects. (Pixabay)
    5/5 NASA conducts surveys done using its ground-based telescopes such as the Pans-STARRS1 in Maui, Hawaii, as well to identify thousands of Near-Earth Objects (NEOs). The space agency also utilizes a space-based telescope called NEOWISE to identify hundreds of others while scanning the skies at near-infrared wavelengths of light from its polar orbit around Earth. (NASA)
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    One impact of the geomagnetic storm tomorrow is that the night sky in New York, and Idaho could light up with auroras. (@amazingskyguy / Twitter)

    The Sun has been very busy this weekend churning out horrifically powerful CMEs and spitting them out towards the Earth. Resultantly, another G2-Class geomagnetic storm is expected to hit Earth tomorrow, October 4, reported. The National Oceanic and Atmospheric Administration (NOAA) forecasters have confirmed that “there is a chance of G2-class geomagnetic storms on Oct. 4th when multiple CMEs might sideswipe Earth's magnetic field. Most of the incoming CMEs were hurled into space by sunspot AR3110, which unleashed a series of strong flares (M5.9, M8.7, X1) over the weekend.”

    Over the last couple of years, the increased activity on the surface of the Sun is because the star is well into its active 11-year cycle. During this time the polar regions on the Sun flip and this results in disruptions of the magnetic field. As the volatility rises, plasma is unleashed into space by the Sun, which is known as coronal mass ejection (CME).

    Upcoming Geomagnetic Storm

    These geomagnetic storms are classified in five classes such as A, B, C, M, and X, while the first three denote being low-intensity, M denotes moderate intensity and the X-class are the most powerful of all. The numbers denote the strength. Hence, the upcoming geomagnetic storm is classified as being of G-2 class. Geomagnetic storms of this intensity often result in voltage fluctuations in high-altitude power systems and even cause transformer damage in case these stay for long. These geomagnetic storms can even leave their impact on the operation of satellites and spacecraft and disrupt high-frequency radio communication.

    That was the bad news. Now, for the good part. These geomagnetic storms also ensure that you can see some fascinating and wonderful auroras in the sky! The report confirmed that during G2-class storms, naked-eye auroras can descend into the United States and that to as low as New York and Idaho. When charged particles from the Sun strike the Earth's atmosphere, they excite those electrons that move to higher-energy orbits and cause them to light up creating a mesmerizing scene.

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    First Published Date: 03 Oct, 22:50 IST
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