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19 May ' 06:17
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19 May ' 01:07
366.9 2.3 Updated: Today at 0757 UT C1 0353 UT May19 C1 0353 UT May19 Updated: Today at: 0800 UT Sunspot number: 146Kp= 4 unsettled6.1 6 south Updated: Today at 0757 UTListen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio
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18 May ' 20:01
386.7 7.3 Updated: Today at 0257 UT C2 2118 UT May18 Updated: Today at: 2359 UT2 5.0 3.7 north Updated: Today at 0257 UT Updated at: 2013 May 18 2200 UTC
Updated at: 2013 May 18 2200 UTC65 %65 %40 %40 %30 %10 %30 %40 %Sunday, May. 19, 2013Listen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio
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18 May ' 14:41
When is the best time to see auroras? Where is the best place to go? And how do you photograph them? These questions and more are answered in a new book, Northern Lights - a Guide, by Pal Brekke & Fredrik Broms.
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18 May ' 09:13
438.0 3.9 Updated: Today at 1605 UT B7 1140 UT May18 Updated: Today at: 1600 UT2 quiet7.8 1 south Updated: Today at 1607 UTListen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio
A CME hit Earth's magnetic field on May 18th at around 0100 UT. Although it was just a glancing blow, the impact was enough to spark a G1-class geomagnetic storm. In the United States, Northern Lights descended as far south as Pawnee Buttes, Colorado:
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18 May ' 03:54
Listen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio
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17 May ' 22:10
415.6 9.9 Updated: Today at 0507 UT C6 0345 UT May18 C6 0345 UT May18 Updated: Today at: 0500 UT Daily Sun: 18 May 13
Sunspot number:
198
5 storm Kp= 5 storm9.2 4.4 Updated: Today at 0507 UTSaturday, May. 18, 2013When is the best time to see auroras? Where is the best place to go? And how do you photograph them? These questions and more are answered in a new book, Northern Lights - a Guide, by Pal Brekke & Fredrik Broms.
MINOR STORM: A minor (Kp=5) geomagnetic storm is in progress following the glancing impact of a CME during the early hours (~0100 UT) of May 18th. High latitude sky watchers should be alert for auroras.
INCOMING CME:. Although this is not the strongest flare we've seen from AR1748, it could be the most geoeffective. The explosion hurled a CME into space that is expected to hit Earth's magnetic field on May 19th. NOAA forecasters estimate a 75% chance of polar geomagnetic storms when the cloud arrives.
The Solar and Heliospheric Observatory took this picture of the CME leaving the sun at 1500 km/s (3.4 million mph) on May 17th:
In the video, the CME appears to hit Mercury, but it does not. It is merely passing in front of the first planet. Instead the CME will deliver a glancing blow to Earth's magnetic field on May 19th. Aurora alerts:
On May 18, 2013 there were
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17 May ' 15:27
375.6 5.7 Updated: Today at 2217 UT B9 1610 UT May17 Updated: Today at: 2200 UT3 Kp= 3 quiet7.6 2.3 Updated: Today at 2217 UT Updated at: 2013 May 17 2200 UTC Updated at: 2013 May 17 2200 UTC35 %20 %05 %20 %75 %They came from outer space--and you can have one! Genuine meteorites are now on sale in the Space Weather Store
M3-FLARE: Sunspot AR1748 unleashed an M3-class solar flare on May 17th at 0858 UT: image. Although this is not the strongest flare we've seen from AR1748, it could be the most geoeffective. The sunspot is facing Earth more directly than before, and the explosion might have hurled a CME toward our planet. Stay tuned for updates.
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17 May ' 07:56
403.6 9.6 Updated: Today at 1446 UT M3 0858 UT May17 M3 0858 UT Updated: Today at: 1400 UT1 7.0 4.7 south Updated: Today at 1447 UTWhen is the best time to see auroras? Where is the best place to go? And how do you photograph them? These questions and more are answered in a new book, Northern Lights - a Guide, by Pal Brekke & Fredrik Broms.
Comet Lemmon (C/2012 F6), which is receding from the sun not far beyond the orbit of Earth, has just experienced a "disconnection event." A cloud of dusty plasma is propagating down the comet's tail, shown here in a photo taken by Paul Mortfield on May 15th:
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17 May ' 00:41
372.6 5.6 Updated: Today at 0737 UT C5 0441 UT May17 C5 0441 UT May17 Updated: Today at: 0700 UT Daily Sun: 17 May 13
Sunspot AR1748
has a delta-class magnetic field that harbors energy
for Sunspot number:
212
Updated
17 May 201317
May 2013145
Updated 17 May 2013
5.0 0.9 north Updated: Today at 0737 UT Coronal Holes: 17 May 13
When is the best time to see auroras? Where is the best place to go? And how do you photograph them? These questions and more are answered in a new book, Northern Lights - a Guide, by Pal Brekke & Fredrik Broms.
A coronal mass ejection (CME) hurled into space by the X1-flare of May 15th might deliver a glancing blow to Earth's magnetic field on May 17th. NOAA forecasters estimate a 40% chance of polar geomagnetic storms when the cloud arrives. High-latitude sky watchers should be alert for auroras tonight.
QUIET BUT POTENT: Sunspot AR1748 has been relatively quiet for the past 24 hours, prompting NOAA forecasters to lower the daily odds of X-flares to 50%. The active region still has a delta-class magnetic field that harbors energy for strong explosions. There's an even chance that some of that pent-up energy will be released today.
To illustrate the scale of the sunspot, photographer Göran Strand of Frösön, Sweden, inserted Earth into a picture of AR1748 he took on May 16th:
The sunspot's primary dark cores are nearly as big as our planet. However, that doesn't make this a big sunspot. Other 'spots on the sun today are larger. AR1748 is not explosive because it is large, but rather because it has a complex magnetic field. Lines of magnetic force twisting above the spot are criss-crossing and re-connecting. That's how you make an X-flare
-class flare (0152 on May 15).
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