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Astronomy and Cosmology
Astronomy and Astrophysics
Solar Activity and Space Weather Update thread
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[QUOTE="Stavros Kiri, post: 5835621, member: 593167"] Just for a very short time [B]6 groups now visible[/B] (new one appeared, 2678). The biggest one now is 2673, which grew very rapidly the last few days. It also gave rise to significant class M- flares, which will be affecting Earth shortly (Geomagnetic storm, predicted Kp index 7, possibly even radio blackout and significant aurora activity expected). Here is some more details from SpaceWeatherLive.com: " [ATTACH=full]210455[/ATTACH] [B][SIZE=4][B]Region 2673[/B][/SIZE] Number of sunspots[/B] [B]Size [/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 33 5 880 200 DKC S09W35 [ATTACH=full]210456[/ATTACH] [ATTACH=full]210457[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 95% 55% 25% 95% [B][SIZE=4][B]Region 2674[/B][/SIZE] Number of sunspots[/B] [B]Size [/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 23 -11 680 -60 FHI N14W19 [ATTACH=full]210458[/ATTACH] [ATTACH=full]210459[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 75% 20% 1% 1% [B][SIZE=4][B]Region 2675[/B][/SIZE] Number of sunspots[/B] [B]Size[/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 1 -3 10 BXO S07W87 [ATTACH=full]210460[/ATTACH] [ATTACH=full]210461[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 5% 1% 1% 1% [B][SIZE=4][B]Region 2676[/B][/SIZE] Number of sunspots[/B] [B]Size[/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 2 -2 30 BXO S09W81 [ATTACH=full]210462[/ATTACH] [ATTACH=full]210463[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 5% 1% 1% 1% [B][SIZE=4][B]Region 2677[/B][/SIZE] Number of sunspots[/B] [B]Size[/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 1 -1 20 10 AXX N18E34 [ATTACH=full]210464[/ATTACH] [ATTACH=full]210465[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 5% 1% 1% 1% [B][SIZE=4][B]Region 2678 New[/B][/SIZE] Number of sunspots[/B] [B]Size[/B] [B]Class Magn. [/B] [B]Class Spot [/B] [B]Location[/B] 2 10 BXO N11E40 [ATTACH=full]210466[/ATTACH] [ATTACH=full]210467[/ATTACH] [SIZE=3][B]Flare probabilities[/B][/SIZE] C M X Proton 5% 1% 1% 1% [URL='https://www.spaceweatherlive.com/en/solar-activity/sunspot-regions#top']Back to top [/URL] Current data suggest that it is not possible to see aurora now at middle latitudes The maximum X-ray flux of the past two hours is: M7.7 S1 Space Radiation Storm At the moment there is a minor S1 class space radiation storm active. This happens about 50 times in one solar cycle. [SIZE=4][B]Latest news[/B][/SIZE] [ATTACH=full]210468[/ATTACH] Monday, 4 September 2017 - 16:35 UTC [SIZE=3][B][URL='https://www.spaceweatherlive.com/en/news/view/299/20170904-m-class-solar-flares-sunspot-region-2673']M-class solar flares, Sunspot region 2673[/URL][/B][/SIZE] [URL='https://www.spaceweatherlive.com/en/news']More news[/URL] [SIZE=4][B]Today's space weather[/B][/SIZE] [B]Auroral activity[/B] [B]Minor[/B] [B]Severe[/B] High latitude 10% 90% Middle latitude 40% 45% Predicted Kp max 7 [URL='https://www.spaceweatherlive.com/en/auroral-activity/aurora-forecast']Aurora forecast[/URL][URL='https://www.spaceweatherlive.com/en/help/the-low-middle-and-high-latitude'] Help[/URL][URL='https://www.spaceweatherlive.com/en/auroral-activity']More data[/URL] [B]Solar activity[/B] M-class solar flare 75% X-class solar flare 25% [URL='https://www.spaceweatherlive.com/en/solar-activity/sunspot-regions']Sunspot regions[/URL][URL='https://www.spaceweatherlive.com/en/solar-activity']More data[/URL] [B]Moon phase[/B] Full Moon [URL='https://www.spaceweatherlive.com/en/moon-phases-calendar'] Moon Phases Calendar[/URL] [SIZE=4][B]Space weather facts[/B][/SIZE] Last X-flare: [URL='https://www.spaceweatherlive.com/en/archive/2015/05/05/xray']2015/05/05[/URL] X2.7 Last M-flare: [URL='https://www.spaceweatherlive.com/en/archive/2017/09/05/xray']2017/09/05[/URL] M2.3 Last geomagnetic storm: [URL='https://www.spaceweatherlive.com/en/archive/2017/09/04']2017/09/04[/URL] Kp5 (G1) Number of spotless days in 2017: 56 Last spotless day: 2017/08/01 [SIZE=3][B]This day in history*[/B][/SIZE] [B]Solar flares[/B] 1 [URL='https://www.spaceweatherlive.com/en/archive/2011/09/06/xray']2011[/URL] X2.1 2 [URL='https://www.spaceweatherlive.com/en/archive/2011/09/06/xray']2011[/URL] M5.3 3 [URL='https://www.spaceweatherlive.com/en/archive/2012/09/06/xray']2012[/URL] M1.6 4 [URL='https://www.spaceweatherlive.com/en/archive/2005/09/06/xray']2005[/URL] M1.4 5 [URL='https://www.spaceweatherlive.com/en/archive/2014/09/06/xray']2014[/URL] M1.1 [B]Ap[/B] [B]G[/B] 1 1995 23 G2 2 [URL='https://www.spaceweatherlive.com/en/archive/2004/09/06']2004[/URL] 14 3 1994 14 G1 4 [URL='https://www.spaceweatherlive.com/en/archive/2016/09/06']2016[/URL] 13 5 [URL='https://www.spaceweatherlive.com/en/archive/2015/09/06']2015[/URL] 13 *since 1994 " [/QUOTE]
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