Viewing archive of Saturday, 25 February 2017

Select the desired archive item

Coronal hole, Aurora forecast page

Solar activity is very low today and expected to remain so in the foreseeable future as no sunspot regions on the earth-facing side of the solar disk are complex enough to produce C, M or X-class solar flares. Sunspot region 2638 did gave us a few C-class solar flares during the past few days but it is not a sunspot region to get really excited about. That means we have to shift our attention (like we've been doing for quite some time now) to another solar feature that we've all become very familiar with: coronal holes. Today we have such a coronal hole facing our planet and it is now sending an enhanced solar wind stream towards our planet that is expected to arrive within the next 48 to 72 hours.

Read more

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/30M2.03
Last geomagnetic storm2025/05/03Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2025140.6 +6.4
May 202578.8 -61.8
Last 30 days104.1 -33.5

This day in history*

Solar flares
12024X3.98
22022X1.51
32012M8.25
42024M5.97
52013M5.67
DstG
12024-351G4
21992-288G4
31981-99G3
41993-91G2
52003-84G3
*since 1994

Social networks