Quite busy corona over the past 42 hours (We watch the east limb of the Sun with NASA's SDO satellite in 171, 193 and 211 Angstroms)
09.03.2026 19:16
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Quite busy corona over the past 42 hours (We watch the east limb of the Sun with NASA's SDO satellite in 171, 193 and 211 Angstroms)
☀️ Eye candy: close-up of coronal plasma rain and a triple jet-like filament eruption on the north-eastern limb of the Sun
(SDO AIA 171, 304, 171 Base Difference)
Triple jet from a bright point near the northeastern limb of the Sun
(SDO AIA 171, 304, 171 Base Difference)
Synoptic Map of the Sun
- connection with coronal hole CH29- persists
- matured regions in the western hemisphere
- many small filaments in the centre
- large trans-equatorial coronal hole in the east could bring fast solar wind in a week or so
- two interesting new regions near the east limb
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Some east limb filament ballet and a small active region approaching the limb
(SDO AIA 171, SDO AIA 304)
Red and green aurora with SAR arc in Popovo, Yaroslavl, 57°N 38°E, North, UTC +3 starvisor.net/pop/
Solar Synoptic Map
- period of low solar activity continues
- 6 active regions on the visible disk, none of them with high flare risk or significant complexity/ growth
- the connection with an equatorial coronal hole is expected to be geoeffective soon (Kp4-6 ACTIVE-MODERATE STORM)
We see some flux emergence and development of new sunspots in the intermediate and trailing section of active region 4381, east of the sun's central meridian.
Solar Synoptic Map
- An equatorial coronal hole could bring fast solar wind (450-600 km/s) on 6 or 7 March
- 4 sunspot groups, quite simple without growth and low solar flare activity
Synoptic map of the sun
- low solar flare activity
- 5 rather simple sunspot groups on the visible disk; 4384 is showing development
- negatively polarised coronal hole CH29- will cross the central meridian soon and could bring fast solar wind in 3-5 days
Sun: Polar crown filament lift-off
The video is made with imagery of NASA's SDO satellite - reliable, high quality images of the sun used for science and operations. The White House wants to cut its budget now. We need SDO! Please don't cut the budget.
Increasing solar flare activity, partly caused by a new sunspot group behind the northeastern limb.
Solar Synoptic Map
- central coronal holes have shrunk
- new sunspot group in the east
Sunspots and solar flare activity (SDO AIA 171, 94)
Some activity near the eastern limb of the Sun…
50 hours – southeastern limb of the sun - active regions, coronal loops, solar flares – we'll see if they survive until they reach the earth-strike zone
Solar Synoptic Map
- long, positively polarised coronal holes near the central meridian could bring moderately elevated solar wind speeds soon
- new sunspot groups near the east limb of the sun end the spotless period
STEREO A COR2 coronagraph, earth is left
Some plasma ping pong on the sun could have produced an earth-directed CME
Flaring regions north and south of the solar equator are approaching the eastern limb of the Sun.
Synoptic map of the Sun
Only three tiny sunspots left in a small unnumbered region near the centre of the visible disk.
Coronal hole CH26– is dominating the earth's space weather with fast solar wind and aurora at high latitudes
Two larger filament eruptions occurred near the SE and SW limb
Eastern limb of the sun: A large filament is lifting off
Western limb of the Sun: Filament eruption and some subsequent plasma rain…
SDO AIA 171, 193, 131, 304Å
A four year old child as a head of state.
Possible CME impact - likely in association with a large streamer blowout to the southeast and a stealth CME from coronal hole CH26 opening to the west (?) a large halo from N to S visible in STEREO A COR2 and LASCO C2 - here the bundle in STEREO Heliospheric Imager, 18 Feb
3½ days of a 'quiet' sun - few sunspots, small flares but still coronal mass ejections everywhere: mainly streamer blowouts and filament eruptions.
Nothing visible in STEREO A COR2 - so most likely no CME 😬
Eruptive C-class flare from region 4377 near the central meridian of the sun. Waiting for coronagraphs to see whether we've got a little CME with possible earth-directed components
The sun with potential magnetic field (PFSS model) and coronal streamers
The butterfly or thyroid coronal hole has returned to its original size after being nibbled away at by sunspots on all sides.
Current number is CH26, it could bring us some decent aurora shows soon, at least at higher latitudes…
