![]() We invite you all to send us your beautiful recent photos of sunspots and auroras. Sun activity for October 17, 2022: A new region is beginning to rotate into view on the sun’s southeast limb (edge) shown with SDO 171, 193, and 131 angstrom wavelengths. The sun today has four labeled sunspot regions. The largest was a C1.8 from AR3123 at 16:06 UTC on September 16. The sun produced seven C flares over the past day. There would probably not be an Earth-directed component of any resulting CME. The large prominence on the northwest limb is beginning to erupt at the time of this writing. Filaments around the sun are active with a lot of motion from the southern polar crown filament. So, we’re waiting to see if flaring will pick back up with the new region. On the rest of the sun’s visible surface, activity is low. The sunspots themselves aren’t yet visible, but overlying coronal loops – great arcs of solar plasma curving above the sun’s visible edge – can be seen. Why are east and west on the sun reversed? Sun activity October 17: New sunspot region coming into viewĪ new sunspot region is coming into view just over the sun’s southeast limb (edge). Today’s sun is posted by Armando Caussade. Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams, with labeling by EarthSky. Original image, without labels, via NASA SDO. Today’s sun activity with the most active regions labeled ( 2 UTC on October 18, 2022). #astrophotography #solar #thephotohour /OLEUiJH7Er Inverted view with a SW Esprit 100 and Quark CS. Industrial Engineer Irene Quiroz October 17, 2022 A view with SDO 171/193/131 more /A9uaSAT3wHĭances of some plasma filaments, south pole and northwest of the sun are observed. great action from loops from AR3112+(?) just over the limb. Check out the polar crown filament up in the northwest. Image via SDO and JHelioviewer.įlaring is low but the Sun still got some stuff going on. Was there a sunspot, which decayed? Or was it never fully formed in the first place? We don’t know. There are also concentrations in the magnetic data, but currently not enough to say there’s a sunspot there. Here’s the sun’s southeast limb today (October 18). Mostly quiet conditions are expected for October 19, and it may become active by October 20 with the effect of the new coronal hole. For the rest of the day on October 18, 2022, the geomagnetic activity is expected to be quiet to unsettled with isolated active periods as effects from high-speed solar wind from a coronal hole persist. Next expected CME: No Earth-directed CMEs.Ĭurrent geomagnetic activity: Quiet now. ![]() Next 24 hours: The forecast is for a 45% chance for C flares, 5% chance for M flares and 1% chance for X flares. Besides this, seven additional C-class flares erupted. The largest flare, a C3.37 flare by AR3124, was produced at 17:24 UTC on October 17, 2022. But they can still provide a nice show on the sun (see video and tweets below). They most likely won’t produce Earth-directed events. But don’t count out the filaments and prominences just yet! Currently, we’re seeing some interesting activity from the polar crown filaments. This new coronal hole might become a source for some fun on Earth – some gorgeous auroral displays – which will be welcomed given the lack of magnetically active sunspot regions in the past few days. A couple of weeks ago, two large coronal holes caused intense auroral activity as far south as Seattle and Minnesota. As the sun’s rotation carries it westward, it’ll soon become geoeffective (able to cause a geomagnetic disturbance at Earth due to its high-speed solar wind). But now a large coronal hole can be seen in the sun’s southeast quadrant. Today’s top news: The possible sunspot group over the sun’s southeast edge has not materialized. Sun activity October 17: Large coronal hole in sight This could become a new source for auroral activity. Sun activity for October 18, 2022: A large coronal hole in the southeast solar quadrant shows up in AIA 193 angstrom. ![]()
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