Sunspot 1363 subsiding, solar activity remains low

sunspot-1363-subsiding-solar-activity-remains-low

After three days of meteoric growth, sunspot AR1363 has reversed course and is beginning to decay. As its magnetic field relaxes, the active region poses a subsiding threat for strong flares. It’s not dead yet, though, as this snapshot shows:

There is still a slim chance that AR1363 will buck the trend and unleash a major M- or X-class eruption. If such an flare happens today, it will be geoeffective because the sunspot is facing Earth. Quiet, however, is more likely. (SpaceWeather)

Solar wind
speed: 296.8 km/sec
density: 2.6 protons/cm3

The Radio Sun
10.7 cm flux: 158 sfu

Planetary K-index
Now: Kp= 0 quiet
24-hr max: Kp= 1 quiet

Interplanetary Mag. Field
Btotal2.1 nT
Bz0.4 nT south 

Solar Flare Risk
M-Class: 20%
X-Class: 01%

Despite the numerous visible sunspot regions, including Sunspot 1363 which has a Beta-Gamma magnetic classification, solar activity has been fairly low over the past 48 hours. The largest flare thus far was a C6.9 which occurred Monday evening. There will remain the risk of an M-Class event on Tuesday. (SolarHam)

Joint USAF/NOAA Report of Solar and Geophysical Activity (06 Dec 2011)
Solar activity was low. Region 1363 (S22W20) produced the sole C-class event, a C6 x-ray flare at 05/2325Z.
Solar activity is expected to be low for the next 3 days (7-9 December).
The geomagnetic field was quiet and is expected to be mostly quiet for the next 3 days (7-9 December). (NOAA/SWPC)

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.