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Aktuální sluneční data:


Pro 12.únor 2025 - 12:30 UT(GMT)

Mezinárodní číslo slunečních skvrn : 097

Sluneční záblesky : M-class flares expected (probability >=50%)
Geomagnetická situace : Minor storm expected (A>=30 or K=5)
Sluneční protony : Quiet

SIDC - Solar Influences Data Analysis Center - Homepage SIDC - Solar Influences Data Center

SIDC Ursigram

3-day-forecast of solar and geomagnetic activity.
Source SIDC (RWC-Belgium)
Frequency Daily
Format Encoded data (ISES)
Mail header SIDC Ursigram
SIDC code meu

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Latest issue

:Issued: 2025 Feb 12 1231 UTC
:Product: documentation at http://www.sidc.be/products/meu
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
# (RWC Belgium)                                                      #
#--------------------------------------------------------------------#
SIDC URSIGRAM 50212
SIDC SOLAR BULLETIN 12 Feb 2025, 1230UT
SIDC FORECAST 
SOLAR FLARES  : M-class flares expected (probability >=50%)
GEOMAGNETISM  : Minor storm expected (A>=30 or K=5)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 12 Feb 2025  10CM FLUX: 153 / AP: 011
PREDICTIONS FOR 13 Feb 2025  10CM FLUX: 154 / AP: 024
PREDICTIONS FOR 14 Feb 2025  10CM FLUX: 155 / AP: 008

Solar Active Regions and flaring: Solar flaring activity over the last 24
hours has been at low levels, with multiple C-class flares. The largest
flare was a C7.6 flare (SIDC Flare 3584) peaking at 14:05 UTC on February
11, which was associated with SIDC Sunspot Group 391 (NOAA Active Region
3981, magnetic type beta-gamma). There are currently seven numbered active
regions on the solar disk. The most complex one is SIDC Sunspot Group 346
(NOAA AR 3990, magnetic type beta-gamma). SIDC Sunspot Group 391 (NOAA AR
3981) has rotated behind the west limb. SIDC Sunspot Group 398 (NOAA AR
3991, magnetic type alpha) has rotated on disk from the east limb, in the
southeast quadrant. The solar flaring activity is expected to be at low to
moderate levels over the next 24 hours, with C-class flares expected and
M-class flares probable.

Coronal mass ejections: A wide Coronal Mass Ejection (CME) was observed in
LASCO/C2 and LASCO/C3 coronagraph imagery starting from around 18:30 UTC on
February 11, lifting off the east limb. It is most likely associated with a
C7.2 flare (SIDC Flare 3581) peaking at 18:25 UTC on February 11 and a
filament eruption near SIDC Sunspot Group 398 (NOAA AR 3991). It is not
expected to impact the Earth. Two CMEs were observed in LASCO/C2
coronagraph imagery, lifting off the west limb, most likely associated with
eruptive activity near SIDC Sunspot Group 391 (NOAA Active Region 3981).
The first CME was faint, observed around 23:30 on February 11 and the
second around 08:50 UTC on February 12. Neither is expected to impact the
Earth. No other Earth-directed CMEs were observed in the available
coronagraph imagery.

Coronal holes: The southern, low-latitude, negative-polarity coronal hole
(SIDC Coronal Hole 87) still resides on the central meridian. An associated
high-speed stream may arrive at Earth starting from UTC midday on February
12.

Solar wind: The solar wind conditions (ACE & DSCOVR) were enhanced during
the last 24 hours, still under the influence of the high-speed stream from
the negative polarity coronal hole (SIDC Coronal Hole 88). Speed values
were between 500 km/s and 580 km/s. The interplanetary magnetic field
values were around 5 nT. The Bz component varied between -5 nT and 5 nT.
The interplanetary magnetic field angle was predominantly in the negative
sector, with few positive intervals. Enhanced solar wind conditions are
expected over the next 24-48 hours, pending the arrival of a high-speed
stream from the southern, negative polarity coronal hole (SIDC Coronal Hole
87).

Geomagnetism: Geomagnetic conditions globally were mostly at unsettled
levels (NOAA Kp 3), reaching active levels (NOAA Kp 4) between 03:00 and
06:00 UTC on February 12. Geomagnetic conditions locally were mostly at
unsettled levels (K Bel 3), reaching active levels (K Bel 4) between 17:00
UTC and 18:00 UTC on February 11. Mostly unsettled to active conditions,
with a chance of minor storm intervals (NOAA Kp 5, K Bel 5) are expected
globally and locally over the next 24 hours, in response to the expected
arrival of a high-speed stream from the southern, negative polarity coronal
hole (SIDC Coronal Hole 87).

Proton flux levels: The greater than 10 MeV proton flux was below the
threshold level over the past 24 hours. It is expected to remain below the
threshold level over the next 24 hours.

Electron fluxes at GEO: The greater than 2 MeV electron flux measured by
GOES 16 was above the threshold level between 14:00 UTC and 21:30 UTC on
February 11. The greater than 2 MeV electron flux measured by GOES 16 was
above the threshold level between 15:40 UTC on February 11 and 02:00 UTC on
February 12. The 24-hour electron fluence is currently at moderate levels
and is expected to remain so over the next 24 hours.




Zdroj : SIDC Ursigram


Předpověď sluneční aktivity pro období : February 07 - February 13, 2025

Zdroj : http://www.asu.cas.cz/~sunwatch


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
EIT 304

Fe IX/X 17,1 nm
1 000 000 °C
EIT 171

Fe XII 19,5 nm
1 500 000 °C
EIT 195

Fe XV 28,4 nm
2 500 000 °C
EIT 284

SDO/HMI Continuum

SDO/HMI Magnetogram

LASCO C2

LASCO C3


sidc.oma.be/LatestSWData