·

Asymmetric, Earth-directed partial-halo CME and M1.0 solar flare erupted from Region 2497

asymmetric-earth-directed-partial-halo-cme-and-m1-0-solar-flare-erupted-from-region-2497

An asymmetric partial-halo Coronal Mass Ejection (CME) erupted from Region 2497 late February 11, 2016. The CME was, at least in part, produced by a long duration C8.9 solar flare that peaked at 21:03 UTC. 

Associated with the event were Type II and Type IV radio sweeps (estimated shock speed of 483 km/s). Initial analysis suggests this CME has an Earth-directed component and is expected to arrive early on February 15, causing periods of G1 – Minor geomagnetic storming.

Partial-halo CME on February 11, 2016. Image credit: ESA/NASA SOHO/LASCO C2.

At 10:47 UTC on February 12, the same region erupted with M1.0 solar flare (R1 – Minor radio blackout). There were no radio signatures that would suggest a CME was associated with that event.

Slight growth and consolidation was observed in Region 2497 as well as the formation of a delta within its larger intermediate spots over the last 30 hours.

SWPC forecasters expect C-class flares with a chance for another R1 – Minor event over the next few days.

Sunspots on February 12, 2016. Image credit: NASA SDO/HMI

2492 – Alpha
2494 – Beta
2497 – Beta-Gamma-Delta
2498 – Alpha

WSA-ENLIL CME prediction model. Credit: NASA/GSFC

Featured image credit: NASA/GSFC

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

Share:

Related articles

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

Your email address will not be published.