[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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