Mastodawn

#SpaceWeather : The chance for strong flares ☀️ increased to 20%. The main driver is active region #AR4405

Forecast:

📆 April 1: A #CME may provoke enhancements up to G2 (moderate) geomagnetic storming late today

📆 April 2: G1 (minor) #geomagnetic storm levels expected

📆 April 3: Unsettled to active conditions may occur. A chance of G1 (minor) storm intervals exists if the next coronal hole’s fast solar wind stream arrives earlier than expected

https://earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates/

Sun news: M3.9 flare erupts as CME glances Earth

EarthSky | Updates on your cosmos and world

GNSS-Stylist Mar 19

Effects of a decaying geomagnetic storm on RTK-GNSS (u-blox ZED-F9P, about 20 km baseline)

https://makertube.net/w/cg7BSy5yaG4GGBLKM9ZjDi

Effects of a decaying geomagnetic storm on RTK-GNSS (u-blox ZED-F9P, about 20 km baseline)

PeerTube

IRAP Jan 23

[1000 km/sec - < 500 MeV - > 50nT] These three values reflect the intensity of the #geomagnetic storm that hit the #Earth at the beginning of the week. Caused by an X1.9-class solar flare, it produced magnificent auroras—even at mid-latitudes.

Thanks to the vast network of instruments aboard space telescopes (SOHO, Solar Orbiter, etc.) and distributed on the ground, astronomers were able to track the evolution of this solar storm and its propagation toward Earth: https://www.irap.omp.eu/en/2026/01/all-about-the-solar-flare-of-january-18-2026/

Puzaty Miadzviedź Jan 21

Choose the best one from the late evening January 20.
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#photo #aurora #polar #geomagnetic #colorful #active #winter #january #astro #fujixa3 #nightly #ззянне #астра #ноч #студзень #фотаздымкі #прырода #астро #сияние #небо

Puzaty Miadzviedź Jan 20

There are some vertical photos for you. Aurora tonight.
#photo #aurora #polar #geomagnetic #colorful #active #winter #january #astro #nightly #ззянне #астра #ноч #студзень #фотаздымкі #прырода #астро #сияние #небо

drs1969 (David Smith) 🇬🇧Jan 11

MAHOOSIVE #geomagnetic #SolarStorm going on - stronger than last night. And here at 51 degs north its windy and wet. Bugger.

Last night there was a very annoying high haze which meant i got a vague purpleish sky to the north at best.

Damn

Show thread

Spaceflight 🚀Jan 2

Higher levels of #CarbonDioxide will make the upper atmosphere less dense overall — but more prone to dramatic increases 📈 in density during #SolarStorms, which could have significant implications for technology like #GPS, #satellite 🛰️ internet and the #ISS. The May 2024 #geomagnetic superstorm caused nearly half of all satellites in #LEO to automatically fire their thrusters to stay spaceborne https://www.astronomy.com/science/satellites-face-new-challenges-from-solar-storms

#NASA #SolarCycle ☀️ forecast https://www.nasa.gov/solar-cycle-progression-and-forecast

#SpaceWeather

Puzaty Miadzviedź Dec 14

А далей была найбольш актыўная фаза ззяння. Я ня ведаў, якую фотку выбраць, таму глядзіце ўсе. Цяжка было спыніцца здымаць. Амаль усе здымкі па 8 сек экспазіцыі, апошні - 30 сек. Усё адбывалася на працягу прыблізна 40 хвілін. 13 снежня 2025.
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And then there was the most active phase of Aurora (about 40 minutes). I didn't know which photo to choose, so look at all of them. It was hard to stop shooting. 13 December 2025.
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#astro #astrophotography #night #nightly #sky #aurora #pillars #ноч #зорнаенеба #зоры #geomagnetic #constellations #ззянне #знічкі #аўрора #слупы

HerrenbergWetter 🏳️‍🌈Dec 8

#Sonnensturm #solarstorm
#geomagnetic|impact

https://www.spaceweather.gov/

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Spaceflight 🚀Dec 5

#SpaceWeather effects affect our technological systems. The currents a #geomagnetic storm induces in power lines can destroy transformers. For long-distance power lines aligned parallel to the geoelectric fields, the induced voltage can be thousands of volts. Many of today’s #electrical systems are built around #computer chips that are not robust to high-voltage surges. The hardest-hit regions could be without #power for days or weeks until equipment could be delivered https://spectrum.ieee.org/us-regions-most-vulnerable-solar-storms

Here Are the U.S. Regions Most Vulnerable to Solar Storms

Grid operators in Minnesota, North Dakota, and Wisconsin should take extra precautions against solar “weather”

IEEE Spectrum