Aktuální sluneční data:
25.říjen 2020 - 12:30 UT(GMT)
Mezinárodní číslo slunečních skvrn :
Sluneční záblesky : Quiet conditions (<50% probability of C-class flares)
Geomagnetická situace : Minor storm expected (A>=30 or K=5)
Sluneční protony : Quiet
Komentář : Solar flaring activity was at very low levels. No significant
flares have been recorded. Solar activity is expected to remain at very low
No Earth directed Coronal Mass Ejections (CMEs) were observed in the
available coronagraphic imagery.
The greater than 10 MeV proton flux was at background levels over the past
24 hours. It is expected to stay at background levels for the next 24
hours. The greater than 2 MeV electron flux was at moderate levels,
reaching 918 pfu at Oct 25 01:55UT, as we are still under the influence of
the high solar wind speed caused by the High Speed Streams (HSS)
originating from the Coronal hole (CH) crossing Central Meridian (CM) on
Oct 19. It is expected to increase further in the 24 hours.
The speed of the solar wind remained enhanced, varying between 515 and 595
km/s (DSCOVR), caused by the presence of the HSS originating from the CH
crossing CM on Oct 19. The polarity of the Interplanetary Magnetic Field
(IMF) was predominantly away from the Sun (phi angle to positive sector).
Bz fluctuated between -5 and +3 nT. The magnitude of the magnetic field
varied between 1 and 7 nT. Over the next 24 hours, the solar wind
parameters are expected to remain at those levels, as additional effects
of the HSS from the CH crossing CM on Oct 22 can be expected.
The geomagnetic conditions were active (K Dourbes=4). The values registered
for the past 24 hours were 0-4 for K Dourbes and 2-3 for NOAA Kp. Unsettled
to active conditions, with a possibility of a minor storm, are expected for
the next 24 hours.
Předpověď sluneční aktivity pro období : October 23 - October 29, 2020
Poslední fotografie ze SOHO / SDO:
Různé barvy snímků prozrazují odlišné vlnové délky - každá
vlnová délka je vyzařována plynem o určité teplotě: oranžová: 80 000 °C,
modrá: 1 000 000 °C, zelená: 1 500 000 °C, hnědá: 2 500 000 °C.
He II/Si XI 30,4 nm
80 000 °C
Fe IX/X 17,1 nm
1 000 000 °C
Fe XII 19,5 nm
1 500 000 °C
Fe XV 28,4 nm
2 500 000 °C