· ·

Double coronal hole spewing high speed stream toward Earth

double-coronal-hole-spewing-high-speed-stream-toward-earth

A double-barreled hole has opened up in the sun’s atmosphere and it is spewing a split-stream of solar wind toward Earth. NASA’s Solar Dynamics Observatory captured this composite UV image of the double coronal hole on August 20th:

Sky watchers should be alert for auroras when the solar wind arrives on August 22-24. NOAA forecasters estimate a 35% to 50% chance of high-latitude geomagnetic activity. (SpaceWeather)

Solar activity continues at very low levels with only minor C-Class activity taking place. Sunspot 1272 in the southern hemisphere did show some growth over the past 24 hours. Sunspot 1271 remains a large area, but otherwise has been quiet. There will be a chance for C-Class flares and perhaps a low risk of an M-Class event. (SolarHam)

The geomagnetic field was quiet to unsettled due to the arrival of a favorably positioned negative polarity coronal hole. The geomagnetic field is expected to be unsettled with a chance for active conditions at high latitudes on Days 1 and 2 (22-23 Aug) with the arrival of a second coronal hole high speed stream (HSS). Day 3 (24 Aug) is expected to decrease to quiet conditions as effects from the HSS subside. (NOAA SWPC Solar report)

CORONAL HOLES AND THE SOLAR WIND

If you value what we do here, create your ad-free account and support our journalism.

Share:

Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.

Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.

All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.

You can choose the level of your support.

Stay kind, vigilant and ready!

$5 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$200 /year

You can also support us by sending us a one-off payment using PayPal:

Leave a reply