Maria wrote:This advisory in from http://www.spaceweather.com
Sunspot AR2712 is quiet, but it might not remain so. The sunspot has quadrupled in size in the past 48 hours. Instabilities in its fast-changing magnetic field could lead to solar flares.
As AR2712 shows increases in its magnetic field and approaches the center of the sun, any significant flares most likely will be geo-centered. Thus, we could be in for another September 2017 surprise where we experienced X-flares.
AR2712 exploded in a C2.7 at 1710 UT today, May 28, 2018. What will the future bring? According to NOAA, this active region has been quite active.
Code: Select all
[quote] Edited Events for 2018 May 28
#
#Event Begin Max End Obs Q Type Loc/Frq Particulars Reg#
#-------------------------------------------------------------------------------
5600 1215 1218 1220 G14 5 XRA 1-8A B1.1 1.8E-05
5610 1221 1221 1224 HOL 3 FLA N15E27 SF 2712
5620 + 1342 1347 1351 G15 5 XRA 1-8A B1.3 4.8E-05
5630 1405 1406 1419 HOL 3 FLA N15E26 SF 2712
5640 1425 1428 1432 HOL 3 FLA N15E26 SF 2712
5640 + 1426 1430 1433 G15 5 XRA 1-8A B1.4 3.9E-05 2712
5650 + 1502 1507 1511 G15 5 XRA 1-8A B7.2 2.1E-04
5660 + 1557 1601 1605 G15 5 XRA 1-8A B5.2 1.6E-04
5670 1614 1621 1642 HOL 3 FLA N15E25 SF ERU 2712
5670 + 1629 1636 1639 G15 5 XRA 1-8A B7.0 2.3E-04 2712
5680 + 1652 1704 1705 HOL 3 FLA N16E24 SF ERU 2712
5680 + 1704 1710 1712 G15 5 XRA 1-8A C2.7 4.4E-04 2712
5690 1843 1857 1904 G15 5 XRA 1-8A B2.0 1.9E-04 2712
5690 1843 1844 1857 HOL 3 FLA N16E24 SF ERU 2712
5700 1938 1938 1941 HOL 4 FLA N15E22 SF ERU 2712
5710 2050 2054 2057 G15 5 XRA 1-8A B1.7 4.6E-05 [/quote]
Look at the GOES X-ray flux below.