Long duration M1.2 solar flare erupted from Region 1861

Long duration M1.2 solar flare erupted from Region 1861

A long duration solar flare measuring M1.2 erupted at 15:41 UTC on October 17, 2013. The responsible region is "beta-gamma" classified AR 1861 located near the west limb. If CME was generated it would be directed mostly away from Earth.

NOAA SWPC forecasters estimated 30% chance for an M-class solar flare, and 1% chance for an X-class.

Image credit: NASA SWPC, SDO, EVE SAM


There are currently 9 numbered sunspot regions on the disk.

Active Regions - October 17, 2013. Image credit NASA SDO HMI

1861 - Beta-Gamma
1864 - Alpha
1865 - Beta-Delta
1867 - Beta
1869 - Beta
1870 - Beta
1871 - Alpha
1872 - Alpha
1873 - Beta

Featured image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams

Register/become a supporter

Support us AD-FREE

Your support is crucial for our survival. It makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share. 

Monthly subscription

Subscription options

Yearly subscription

Subscription options

You'll receive your ad-free account for 20x faster browsing experience, clean interface without any distractions, ability to post comments without prior editorial check, all our desktop and mobile applications (current and upcoming) ad-free and with the full set of features available, a direct line of communication and much more. See all options.

Tags: m-class


No comments yet. Why don't you post the first comment?

Post a comment

Your name: *

Your email address: *

Comment text: *

The image that appears on your comment is your Gravatar