#solarActivity

2025-04-29

Sonnenflecken am 26. April 2025 zeigen die erhöhte magnetische Aktivität des aktuellen Sonnenzyklus 25 🌞🔭

Bilddaten:
🕓 Aufnahmezeitpunkt: 27.04.2025, 16:32 MESZ
📸 Kamera: Lumix DMC-FZ300 + 2fach-Telekonverter
☀️ Sonnenfilter: Baader AstroSolar Folie
⏱ Belichtungszeit: 1/4000 s bei ISO 100, Einzelaufnahme

#Sonne #Sonnenflecken #Astrofotografie #SpaceWeather #SolarCycle25 #Astronomie #LumixFZ300
#Sunspots #Astrophotography #SolarObservation #Astronomy #SolarActivity #Heliophysics #SolarImaging

„Fotografie der Sonne vom 27. April 2025, aufgenommen mit Sonnenfilter und Telekonverter, zeigt mehrere dunkle Sonnenflecken auf der Sonnenscheibe.

Photograph of the Sun taken on April 27, 2025, using a solar filter and teleconverter, showing several dark sunspots across the bright yellow disk.

Solar Flares and Solar Cycle

Class-M eruptions*) affected shortwave in parts of the Philippines, India, and Hawaii on Wednesday and on Thursday, according to „Prensa Bolivariana“, a pro-Maduro website or blog. Quoting a channel named „Earthsky“, it also notes that more flares may be expected, but not necessarily with much effect on communications.

According to the same article, the current solar activity peak is expected to be reached some time during the first three quarters of 2025.

________________
Notes
*) From „B“ to „X“, a guide to solar flares, NASA, Aug 9, 2011
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#AsiaPacific #India #propagation #shortwave #solarActivity

NASA Solar Dynamics Observatory Satellite
2025-04-02

Mastodon! I'm delivering a talk to a couple of grade 9 classes in a month on the use of space (mainly satellites, but probes to other planets, comets, etc., will be included).

How does your work benefit from satellites?

I'm thinking of a direct use of the data, as opposed to stuff like “internet access” or “my bank relies on satellites to transfer my grant money from one account to another” 😄

Anecdotes, rants, personal stories are all fair game 😊
(To the inevitable suggestion that I just Google this, yes, I can, and have, but I want the human element - I want to be able to say "someone I ‘know’ uses satellites for their job, and this is what they like about the tech”)

Hashtag suggestions are welcome.
(Also - question: Does Mastodon discriminate hashtags with different capitalization? Are #Astronomy and #astronomy functionally different? We *really* need some kind of ISO standard 😉)

#Archaeology #Physics #SolarActivity #Geology #SevereWeather #Climate #ClimateChange
#Satellite #Satellites #Agriculture #oceanography

Daniel Fischercosmos4u@scicomm.xyz
2025-03-31

NOAA doesn't believe in a double maximum of #SolarActivity during the current cyle: swpc.noaa.gov/products/solar-c - the smoothed (that's the metric to look at) sunspot number peaked last fall and has been sliding ever since. There is no reason seen to expect a second peak (like the previous three cycles had but even earlier ones didn't have) but surprises are always possible, of course.

Solar plot generated on the fly
2025-03-24
take a look at the impressive sunspot AR3664! I took this photo last year :) These fascinating structures on the solar surface demonstrate the dynamic nature of our sun. Sunspots are not only beautiful to look at, but also important indicators of solar activity.☀️🔭

#Sunspot #AR3664 #Astronomy #Sun #Space #SolarActivity #Astrophotography #SpaceLovers #Nature #Science #AstronomyLovers
2024-11-06

On Oct 3 2024 we had the most intense solar flare of the current solar maximum. Seen on the Solar Ultraviolet Imager on #GOES19 #SolarActivity phys.org/news/2024-10-satellit

ultraviolet images of the sun with glowing corona showing a bright spot (solar flare) in the lower centre
💧🌏 Greg CocksGregCocks@techhub.social
2024-10-11

Out for a walk in Telluride, CO... here for the Horror Film Festival...
First time seeing Aurora, even with trips way north...
Pink is rare, more so this far south, high solar activity...
My other half is an astronomer & space weather scientist, she is very excited!
#aurora #spaceweather #solaractivity #colorado

George 🍦🚲 🥾 ✌️🌎 🌌gecole@universeodon.com
2024-10-11

Aurora in Provincetown tonight. #aurora #sky #SolarActivity #WhereIsTheMusic

Red aurora with light green streaks.Red aurora.
2024-08-22

The Sun Is More Active Than Scientists Anticipated. Here’s What It Means For Us. : ScienceAlert…

Solar cycles typically occur every 11 years. Within that time, the Sun oscillates from minimum to maximum solar activity, with maximum activity peaking in the middle of the cycle when the Sun's magnetic fields flip... Science Alert #sun #solarcycles #solaractivity #science

formuchdeliberation.wordpress.

2024-08-19

Como proyecto de fin de semana, convertí el RTL-SDR en un Poor Man's eCallisto (por los radiotelescopios de esa red), con una antena de handy y un cable usb de 5m. Lo voy a dejar tomando datos a ver si puedo detectar llamaradas solares en radio, está difícil, pero si detecta algo me tiro a hacer una antena mejor, una logarítmica o algo así #radio #telescopio #solar #rtlsdr #hamradio #solarburst #ecallisto #solaractivity #actividadsolar #solarstorm #tormentasolar

RTL-SDR con antena telescópica de 71cmRTL-SDR con antena telescópica de 71cm de lejosWaterfall horizontal de 10 a 400MHz de las últimas 6 horas
2024-07-30

Retour des aurores cette semaine ?

“Surveillez les aurores boréales cette nuit et les deux suivantes !” :
cieletespace.fr/actualites/sur

#aurora #SolarActivity

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