June 26 sun activity update: Minor geomagnetic storm
Low sun activity continues. Earth experienced a brief G1 geomagnetic storm (minor) caused by the impact of high speed solar wind from a coronal hole. The threshold for G1 was reached at 02:02 UTC on June 26. The storm lasted only a few hours.
You were right!. G1 storm, although it decayed quickly because of the magnetic field turning northward.
— Halo CME (@halocme) June 26, 2022
¡¡Dios mío, la prominencia ha desaparecido!!… ???????
— Jorge Álvarez (@JAL495588) June 26, 2022
June 25 update: Sun activity low
Sun activity continues low, with primarly B-class flares (more than 15 flares) and only two C-class eruptions. The biggest was a C1.6 flare, produced by AR3038 at 8:49 UTC on June 24, 2022. The two sunspot regions with more potential for flares are AR3038 and AR3040. But it seems that AR3038 is starting to weaken a little. It increased in size (area) but decreased in magnetic complexity (more here). Sun spot regions AR3035, at the southwest limb (edge), and AR3034, near the solar equator, are moving out of sight, carried out by the sun rotation. The world’s solar physicists are still flying without SDO data, at the time of this writing. Some details below.
Minor eruption this morning, observed by operational instrument GOES-R/SUVI. pic.twitter.com/T3BCynH7qi
— Halo CME (@halocme) June 24, 2022
June 24 sun activity update: SDO site continues down
Today NASA’s Solar Dynamics Observatory – SDO – site continues out of service. SDO is one of the most comprehensive sun observatories … ever. A widespread power outage has closed the SDO Data Center, which is located at Stanford University in California. The Stanford Emergency Information site explains that the university’s main campus is operating under partial power due to a “PG&E supply disruption.” Until full power restoration, university staff will continue to maximize the use of available power to support high-priority buildings and services for students on campus. The energy outage may continue through the weekend, they said. So SDO data is temporarily unavailable. Click here to check the status of SDO site.
wow, a prominence on the sun’s southeast side. ?? pic.twitter.com/g3DA63GZP3
— Industrial Engineer Irene Quiroz (@nenecallas) June 23, 2022
June 23 update: Temporary SDO data outage
NASA’s Solar Dynamics Observatory – SDO – has been observing the sun continuously since 2010. At this writing, SDO data is temporarily unavailable because of a power outage on the Stanford University campus (the SDO data center is at Stanford). Data outages like this one might happen on occasion, due to things like power outages and server maintenance. Click here to check the status of SDO; if there’s no note saying it’s down … it’s probably back up! The most current coronal data available is from the ESA PROBA2/SWAP imager (see image above), which provides 174-angstrom images. SDO provides data at a wider range of wavelengths. Click here to learn how SDO sees the sun. Meanwhile, sun activity remains low. AR3038 is still the largest and most magnetically complex region on the visible disk. There is no significant change in the remaining spotted regions. Coronal brightening is observed on the limb (edge) of the sun’s North Pole, possibly due to activity on the far side of the sun (see tweet below).
CME WATCH – 2022.06.22: Most data sources still down but SOHO LASCO seems OK. Note how the corona brightens near the north polar region – possibly due to activity on the far side. Also another event off the east limb (left) pic.twitter.com/XCnb7m85Au
— Keith Strong (@drkstrong) June 23, 2022
June 22 update: AR3038 growing … growing
Sun activity remains low. Of the five active regions on the sun, AR3038 remains the most magnetically complex, with the most potential for more flares. It’s also growing more spots. The second-largest region – AR3030 – is less active. The largest of two C-flares over the past 24 hours came from AR3031, as it departed on the sun’s northwest limb (edge). This flare included a beautiful active prominence display. Additional prominences dance all around the sun’s edge.
A beautiful display by departing region AR3031. A C5.6 flare with post flare loops and some dynamic prominence activity. Gorgeously???? shown with SDO 171 and 304. https://t.co/oi3ddL9M54
— Dr. C. Alex Young (@TheSunToday) June 22, 2022
June 21 update: AR3038 still growing
Happy June solstice! Today all of Earth celebrates the June solstice. The sun reaches its northernmost point in our sky. After today, the sun’s path will be shifting southward. There’s a big sunspot region on the sun now. Sunspot region AR3038 has increased in size, by the diameter of another Earth. In addition, three coronal holes have appeared on the solar disk. These will provide high-speed solar wind, expected to impact Earth on June 23.
A beautiful display by the current big kid on the sun block, AR3038. A nice little C5.7 flare earlier June 20th. Let’s see if the region has more in store.???? https://t.co/h5xZQaiLIg
— Dr. C. Alex Young (@TheSunToday) June 21, 2022
June 20 update: AR3038 has doubled in size
Sunspot region AR3038 has doubled in size, making it many times the size of Earth. And it has increased in magnetic complexity over the past 24 hours. It is the most productive flaring region on the sun at present, and harbors the most potential for more activity including possibly an M-class flare. Sun activity overall continues with low-level C flares from three of the six sunspot regions, AR3030, AR3031 and AR3038. The largest was a C5.7 flare from AR3038 at 06:28 UTC on June 20.
Video: A week of sun
A WEEK OF SUN: The sun has still been mostly quiet from June 10 – 16. Lots of spots but not much activity. Three M flares, one with a nice CME that gave Earth a slight nudge. Wondering when we are going to start seeing the action? ????? pic.twitter.com/G0D4R92c6s
— Dr. C. Alex Young (@TheSunToday) June 17, 2022
To our readers and community
We invite you all to send us your beautiful recent photos of sunspots and auroras. We love receiving your photos! To those of you who’ve already posted a photo to our community, thank you.
Earlier sun photographs
Bottom line: Sun news for the week of June 20, 2022, included a beautiful CME with an unknown origin, from either the front side or back side of the sun, and some mild flares.