Stella-Luna Observatory ✨🌙1d ago
Multiple flares with associated coronal mass ejections (CMEs) have been observed over the past 24 hours, originating from Solar Active Region 4455, shown here. "Closely-spaced impacts on June 5th could produce strong G3-class geomagnetic storms," reports SpaceWeather .com, "with auroras in Europe and the USA at mid-latitudes." Of course, we are expecting cloudy skies, here in Northeast Ohio, when the aurora may occur. #spaceweather #aurora #sun #sunspot #solarastronomy #astronomy
Show threadDaniel FischerMay 27
At least five #sunspot groups are visible in this #sunset snapshot from #Bochum, Germany, today (note the newly visible big one at the limb at 11 o'clock) - see https://bsky.app/profile/cosmos4u.bsky.social/post/3mmugamvd422a for several other timesteps!
3i/AtlasMay 21
Study Shows How Sunspot Activity Speeds Up Reentries
https://atlas.whatip.xyz/post.php?slug=study-shows-how-sunspot-activity-speeds-up-reentries
Key insight: <p>It’s getting crowded up there
#reentries #activity #sunspot #getting
Study Shows How Sunspot Activity Speeds Up Reentries

It’s getting crowded up there. Over the past few years, the advent of SpaceX’s Starlink and other players in the mega-satellite constellation game are adding an exponential load of satellites and orbi...

Starry Time PodcastMay 7

It can be hard when you see pictures of sunspots to really grasp their size...which is why I like these kind of visualizations!

This is video captured by #SDO from July of 2017 -- and we can see the size of earth vs a sunspot!

How big/small to sunspots get?? Check out our most recent #podcast episode for the answer: https://starrytimepodcast.podbean.com/e/asterism-maria-mitchell-and-sunspots/

📹 :https://starrytimepodcast.podbean.com/e/asterism-maria-mitchell-and-sunspots/

#sunspot #NASA #Astronomy #astrodon #space #science #SDO #Solar #Sun #gif

Starry Time PodcastMay 6

Today's sun 🌞

To learn more about those #sunspots -- check out this week's #podcast here: https://starrytimepodcast.podbean.com/e/asterism-maria-mitchell-and-sunspots/

For more of today's sun & these images: https://sdo.gsfc.nasa.gov/data/

#sun #solar #sunspot #science #astronomy #AstroDon #astrophotograhpy #NASA #SDO

Show threadSpaceflight 🚀Mar 30

☀️ 30 March 2026 The eruption came from a magnetically complex #sunspot group now rotating further into Earth's view — meaning any continued activity could have more direct impacts ☢️ on Earth and #Artemis 2 https://www.space.com/astronomy/sun/powerful-x-class-solar-flare-triggers-radio-blackout-ahead-of-artemis-2-launch

#RadiationProtection #HumanSpaceflight #SpaceWeather

Powerful X-class solar flare triggers radio blackout ahead of Artemis 2 launch

An X1.4 solar flare triggered radio blackouts and launched a fast CME as NASA prepares for its Artemis 2 moon mission.

Space
Adamas NemesisMar 25

I know I've shared this one a lot lately, but so help me I just love the energy of this piece, which I've been playing around with a bit; lo, a slightly softer and brighter version of my sci-fi caprice "Reach for the Light" (yes, those are solar sails in silhouette).

#art #digitalart #digitalpainting #painting #solarsail #spaceflight #scifi #sciencefiction #star #sun #sunspot #spaceart

DobviewsMar 20

Quick Astro Fact - Sun

https://youtube.com/shorts/n5KyZsxRMng?si=55rYPxJwSz96nDbX

#astronomy
#sun
#sunspot
#educationalshorts
#photography
#astrophotography
#smartphoneastronomy

Quick Astro Facts

YouTube
Adamas NemesisMar 15

Oh I'm sure it'd take the mother of all tinted windows to stop it from blinding you, but imagine being on a solar sail, making a fly-by to gain speed to your final destination, and then seeing *this* out your window. The ultimate scenic route, in my own painting, "Reach for the light".

#art #digitalart #digitalpainting #painting #scifi #scifiart #spaceart #spaceflight #solarsail #spacecraft #sun #star #sunspot

Daniel FischerMar 12
Witnessing Magnetic Reconnection in Tangled Superpenumbral Fibrils around a Sunspot: https://iopscience.iop.org/article/10.3847/1538-4357/ae12e9 -> Astronomers See Braided Magnetic Fields Above a #Sunspot: https://aasnova.org/2026/03/11/astronomers-see-braided-magnetic-fields-above-a-sunspot/
Witnessing Magnetic Reconnection in Tangled Superpenumbral Fibrils around a Sunspot

Witnessing Magnetic Reconnection in Tangled Superpenumbral Fibrils around a Sunspot, Chen, Hechao, Tian, Hui, Priest, Eric R., Prior, Christopher B., Xia, Chun, Yeates, Anthony R., Yan, Xiaoli, Duan, Yadan, Hou, Zhenyong, Huang, Zhenghua, Rice, Oliver E. K.