Marko Rummelsburg
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markorummelsburg.bsky.social
Marko Rummelsburg
@markorummelsburg.bsky.social
Polymath, Space Weather Enthusiast, Berlin ☞ raumwetter.de #AuDHD 🏳️‍🌈
Update: The high speed stream (fast solar wind) arrived earlier than expected. Current solar wind speed at L1 ≈ 700 km/s
November 24, 2025 at 12:09 PM
Faint CME visible in STEREO A COR2 coronagraph
November 24, 2025 at 8:53 AM
Visually i prefer the first one (with colourful icons) - but looking at the second one i have noticed that i was able to process the information better even though the design is bit too 'spacey' imho (makes it appear less credible). Design: 1st, Cognition: 2nd (top down list better than two columns)
November 23, 2025 at 11:08 AM
Quiet sun
November 22, 2025 at 2:52 AM
The imagery is from NOAA's GOES-19 weather & space weather satellite. Most of the time my videos are made of NASA's Solar Dynamics Observatory (SDO) hi-res imagery. Both are in geosynchronous orbit. NASA's new IMAP is not operational yet a.f.a.i.k. (position will be at Lagrange Point 1 - L1)
November 22, 2025 at 1:52 AM
Close up of a filament lift off at the West limb of the sun.
November 22, 2025 at 1:32 AM
I share your belief. The (electro)magnetic dynamics are very much understudied and need more attention. E.g. fully understanding the solar dynamo will improve long-term forecasting of solar activity dramatically.
November 22, 2025 at 12:55 AM
You can see different things in different wavelengths. Each wavelength represents a specific temperature and therefore different heights above the photosphere (what most people call the 'surface'). E.g. you can see fast wind producing 'coronal holes' in 19,3 nm and 21,1 nm only (193 Å and 211 Å)
November 21, 2025 at 10:23 PM
This page gives an excellent overview on different wavelengths caught by the Solar Dynamics Observatory SDO www.thesuntoday.org/sun/waveleng...
Wavelengths of Light - The Sun Today with Dr. C. Alex Young
The Solar Dynamics Observatory (SDO) images 10 different wavelengths. The “false colors” are chosen to best highlight features in each wavelength.
www.thesuntoday.org
November 21, 2025 at 10:18 PM
I'm not a scientist, just an autodidact space weather geek. Most of the time i'll try to use simple language but sometimes i don't. Like with this post. When 300 characters are not enough to explain what you see.

A far sided eruption is always away from earth.
November 21, 2025 at 10:09 PM
No, this eruption is far sided and heading southward. The material will miss earth and won't have any geomagnetic effect (that's the case with most of the eruptions/coronal mass ejections).
November 21, 2025 at 10:03 PM
The withdrawal happens quite often. It's a failed filament eruption. The initial energy was not sufficient to overcome sun's gravitation and the material got reabsorbed.
November 21, 2025 at 4:21 AM