[SFDXA] THE SOUTHERN HEMISPHERE IS STILL IN CHARGE

Bill bmarx at bellsouth.net
Tue Dec 3 07:58:53 EST 2024


/From Tony N2MFT:/

*"EXTENSIVE DAMAGE" TO SOLAR DATA SERVERS:*For the rest of the year, 
Daily Sun images on Spaceweather.com will look a little different. 
Normally, we share full-disk images from NASA's Solar Dynamics 
Observatory (SDO). However, a broken pipe and subsequent flood at 
Stanford University's Joint Science Operations Center has 
causedextensive damage 
<https://solarweb1.stanford.edu/JSOC_Emergency_Resources.html>to many 
SDO data servers. Repairs won't be complete until 2025. Now for the good 
news: Our readers are filling in the gap. Daily images of the sun are 
routinely taken by many skilled amateur astronomers around the world. We 
will be sharing their resultsright here 
<https://www.spaceweather.com/images2024/30nov24/righthere.jpg>.

*mf:*NASA and NOAA announced in October thatSolar Maximum has arrived 
<https://www.swpc.noaa.gov/news/joint-solar-maximum-announcement-nasa-and-noaa>. 
Only half of the sun is paying attention. The sun's southern hemisphere 
continues to dominate sunspot production:

<https://spaceweathergallery2.com/indiv_upload.php?upload_id=218131>
Composite of daily sun images from NASA's SDO. Credit: Şenol ŞANLI and 
Uğur İKİZLER

This is a composite image of all sunspots in November 2024. Southern 
sunspots outnumbered northern sunspots 4:1 according tohemispheric data 
<https://www.sidc.be/SILSO/datafiles>from the Royal Observatory of 
Belgium (WDC-SILSO). This is the 6th month in a row the south has 
significantly outperformed the north. You can see the same pattern 
visually in composite images fromOctober 
<https://spaceweathergallery2.com/indiv_upload.php?upload_id=217475>,September 
<https://spaceweathergallery2.com/indiv_upload.php?upload_id=213289>,August 
<https://spaceweathergallery2.com/indiv_upload.php?upload_id=212184>,July 
<https://spaceweathergallery2.com/indiv_upload.php?upload_id=210608>, 
and, to a lesser extent,June 
<https://spaceweathergallery2.com/indiv_upload.php?upload_id=197320>2024.

What’s going on? Solar physicists have long known that the two 
hemispheres of the sun don’t always perform in sync. Solar Max in the 
north can be offset from Solar Max in the south by as much as two years, 
a delay known as the "Gnevyshev gap 
<http://hmi.stanford.edu/hminuggets/?p=2685>." This means half of Solar 
Max may still lie in the future--welcome news for sky watchers eager for 
more years of auroras. Stay tuned!


https://www.spaceweather.com

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