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Public release date: 31-Jan-2013[ | E-mail |
Share ] Contact: Susan Hendrix
Susan.m.hendrix@nasa.gov
301-286-7745
NASA/Goddard Space Flight Center
On Jan. 31, 2013 at 2:09am EST, the sun erupted with an Earth-directed coronal mass ejection or CME. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA's Solar and Heliospheric Observatory, show that the CME left the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. Historically, CMEs at this speed are mild.
Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and reach Earth one to three days later.
Earth-directed CMEs can cause a space weather phenomenon called a geomagnetic storm, which occurs when they connect with the outside of the Earth's magnetic envelope, the magnetosphere, for an extended period of time. In the past, CME's such as this have caused auroras near the poles but didn't disrupt electrical systems on Earth or interfere with GPS or satellite-based communications systems.
NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts, alerts, watches and warnings.
Updates will be provided if needed.
###
High Resolution imagery and additional multimedia from this event is available at http://svs.gsfc.nasa.gov/vis/a010000/a011200/a011201/.
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 31-Jan-2013[ | E-mail |
Share ] Contact: Susan Hendrix
Susan.m.hendrix@nasa.gov
301-286-7745
NASA/Goddard Space Flight Center
On Jan. 31, 2013 at 2:09am EST, the sun erupted with an Earth-directed coronal mass ejection or CME. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA's Solar and Heliospheric Observatory, show that the CME left the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. Historically, CMEs at this speed are mild.
Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and reach Earth one to three days later.
Earth-directed CMEs can cause a space weather phenomenon called a geomagnetic storm, which occurs when they connect with the outside of the Earth's magnetic envelope, the magnetosphere, for an extended period of time. In the past, CME's such as this have caused auroras near the poles but didn't disrupt electrical systems on Earth or interfere with GPS or satellite-based communications systems.
NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts, alerts, watches and warnings.
Updates will be provided if needed.
###
High Resolution imagery and additional multimedia from this event is available at http://svs.gsfc.nasa.gov/vis/a010000/a011200/a011201/.
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2013-01/nsfc-nsa013113.php
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