Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.
show previous rotation(s)
Perustelut ennusteille
Aihe
Perustelu (päivitetty viimeksi 18.4.2024 kello 03:30)
Auringon aktiivisuus
Solar activity is forecast to be moderate, with M-class flares
(R1-R2/Minor-Moderate) likely and a slight chance for an X-class flare
(R3/Strong) over 18-20 Apr.
Aurinkotuuli
Solar wind enhancements from CMEs that left the Sun over 14-15 Apr are
expected to pass Earth on 18 Apr and should wane over 19 Apr. 20 Apr is
likely to see the onset of influence from a negative polarity CH HSS.
Geomagneettinen kenttä
The geomagnetic field is likely to reach G1 (Minor) geomagnetic storm
conditions on 18 Apr due to anticipated arrival of CMEs that left the
Sun on 14 and 15 Apr. Quiet to unsettled conditions are likely over 19
Apr as CME influence wanes. Quiet to unsettled conditions are against
likely on 20 Apr from the anticipated onset of a negative polarity CH
HSS.
Roihupurkaukset eli flaret
Alla olevassa taulukossa näkyy viimeisten 3 vuorokauden aikana auringossa havaitut roihupurkaukset. Ajat ovat Suomen aikoja.
