Solar observation of the sun's sunspots today, Saturday, November 23, 2024 (11/23/24, 11/23/2024).
Original image courtesy of NASA SDO HMI in 4096 resolution. Pino Astro image edit and video production.
170 total sunspots.
Sunspot Clusters AKA Active Regions:
AR3898 (AR13898), AR3899, AR3900 (AR13900), AR3901 (AR13901), AR3902 (AR13902), AR3905 (AR13905).
Area of sunspots are measured in millionths of a solar hemisphere (MH).
For updates on today's Sun flares, visit:
www.spaceweatherlive.com
Flare strength is rated on a scale that includes C-class, M-class, X-class and Proton-class flares.
Daily Sunspots is a series of short videos that document the spots on the sun every day that it's possible from my location. Generally, 10-30 seconds of RAW video is captured with a ZWO SeestarS50, when possible, and images are then stacked to create a more detailed final image.
If it's not possible for me to take my own images, files are downloaded from NASA's SDO HMI, and edited.
What are Sunspots?- Sunspots arise from magnetic disturbances that change how the outer layers of the sun regionally mix, uncovering cooler spots that appear darker on the surface of the sun.
What's the point?- Sunspots and sunspot clusters are part of solar active regions (AR). We track active regions on the sun because they can cause solar flares and coronal mass ejections (CME). Particles ejected from CMEs can hit the Earth several hours later (generally 15-18h) and cause aurora, and large solar storms can do damage to electronics, our electrical grid and satellites. Plus, sunspots look cool, and they are huge! Some can be several times the size of Earth.
Why should I care?- The Carrington Event was the most intense geomagnetic storm in recorded history, peaking on 1–2 September 1859 during solar cycle 10. It created strong auroral displays that were reported globally and caused sparking and even fires in telegraph stations. A geomagnetic storm of this magnitude occurring today has the potential to cause widespread electrical disruptions, blackouts, damage and human deaths due to extended cuts of the electrical power grid. A Carrington-class event today would result in between $0.6 and $2.6 trillion in damages to the U.S. alone.
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Sun Observation- I try to post daily updates relatively early in the day so that others that have interest can see what's going on. I have heard from some other solar astronomers that they appreciate these short videos to see whether or not it's worth getting out their Hydrogen-alpha (H-alpha, Ha) solar telescopes, and it also gives them a preview of the sunspots and active regions.
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