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Originally posted by Phage
reply to post by johnnygun207
They are not the same thing. A solar flare is a strong outpouring of electromagnetic energy (x-rays, UV, visible light). A CME is an eruption of matter.
Solar flares are often (but not always) associated with CMEs. The energy of the flare reaches us at the speed of light. The material from the CME usually takes several days but has been known to reach us in less than 1 day. The CME associated with the Carrrington event in 1859 reached Earth in 18 hours.
[edit on 3/14/2010 by Phage]
Originally posted by Mcfadzien
Just as a matter of interest, has anybody observed the sun at sunset or sunrise? The new sun is shown above at sunrise and below at sunset. This is giving us more energies and affecting our behaviour etc. The weather will also worsen as Mother earth does her thing.
It has been suggested that comets "hitting the Sun" cause solar flares and CMEs. Indeed, if you watch movies of many of our comets, you will see that they do indeed coincide with CMEs. However, there is no relationship between the two, and it is purely coincidence that we see this. Around the peak of the solar cycle, we often see ten or twenty CMEs per day, and on average SOHO discovers a new comet once every three days. So it is really no surprise that we frequently see the two occur at the same time.
Originally posted by SeekerofTruth101
reply to post by pazcat
Thanks for the info. I've checked the daily 3 hr interval Kp planetary index plots ( Geomagnetic storm) and it shows the index at 2 during Mar 14 and Mar 15 and currently now subsided. ( an index of 5 would mean severe magnetic storm and aircrafts would have to be grounded immediately)
Those particles do travel at the speed of light and should have passed us by...
I've also looked into the GOES 11/12 satellite magnometer chart. Particles are passsing through it at 110nT peak and 60nT low during the period of 14 through 15th Mar. I do agree and hope that the transformer problems in Chile are indeed terresterial, as it seems that the particles are low on the E radiation frequency scale. Hopefully the GOES satellite magnometers covers ALL regions of Earth.....
This could be just the beginning of a really terrific display on March 16th and 17th. That's when a solar coronal mass ejection (CME, movie) is due to hit Earth's magnetic field. NOAA forecasters estimate a 30% chance of geomagnetic activity and a 5% chance of severe geomagnetic storms. Sky watchers in Alaska, Canada, Scandinavia, and northern-tier US states such as Minnesota and Wisconsin should be alert for auroras
Solar flares release a cascade of high energy particles known as a proton storm. Protons can pass through the human body, doing biochemical damage. The proton storms are produced in the solar wind, and hence present a hazard to astronauts during interplanetary travel. Most proton storms take two or more hours from the time of visual detection to reach Earth's orbit. A solar flare on January 20, 2005 released the highest concentration of protons ever directly measured,taking only 15 minutes after observation to reach Earth, indicating a velocity of approximately one-half light speed. The radiation risks posted by prominences and coronal mass ejections (CMEs) are among the major concerns in discussions of manned missions to Mars, the moon, or any other planets. Some kind of physical or magnetic shielding would be required to protect the astronauts. Originally it was thought that astronauts would have two hours time to get into shelter, but based on the January 20, 2005 event, they may have as little as 15 minutes to do so. Energy in the form of hard x-rays are considered dangerous to spacecraft and are generally the result of large plasma ejection in the upper chromosphere.
Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels for the next three days (16-18 March). The increase in activity is due to a recurrent coronal hole high-speed stream on day one and day two, and a slow moving partial halo CME observed on 13 February arriving late on day three.
A solar wind stream is heading for Earth, and so is a coronal mass ejection (CME). Together, they add up to a geomagnetic storm alert for March 17th and 18th. The impact of the solar wind plus CME will brighten Arctic skies already alive with Northern Lights: