·

Spectacular M1.7 solar flare at northeastern limb

spectacular-m1-7-solar-flare-at-northeastern-limb

A moderate solar flare reaching M1.7 took place at 17:45 UTC on April 16th. The eruption was centered around a returning region near the northeast limb. It was  one of the most visually-spectacular explosions in years according to SpaceWeather.com. Generated CME was not Earth-directed but it confirms suspicions that a significant active region is rotating onto the Earth-side of the sun. A CME produced by the blast is likely to hit NASA’s STEREO-B spacecraft, but probably no planets.

The storm is not the strongest this year from the sun, but photos and video of the solar flare captured by NASA spacecraft revealed it to be an eye-popping display of magnetic plasma.

Using data from SDO, Steele Hill of NASA’s Goddard Space Flight Center has assembled a must-see movie of the event. The movie shows the explosion unfolding at 304 Angstroms, a wavelength which traces plasma with a temperature around 80,000 K.

Latest NOAA/SWPC Alert
(Apr 16 0548 UTC CONTINUED ALERT)
Electron 2MeV Integral Flux exceeded 1000pfu

The active region off the northeast limb is now rotating into view and initially appeared to be spotless. Old Sunspot 1442 will soon be making its return to the Earth facing side of the Sun. Sunspot 1455 which is turning closer to the western limb with every passing hour, did form some new spots on Sunday. This region may produce C-Class flares. Sunspot cluster 1459 in the southeast quadrant covers a large area but has yet to produce a noteworthy flare. There will remain a small risk for an M-Class event.

3-day Solar-Geophysical Forecast (issued Apr 15 22:00 UTC)

Solar Activity Forecast: Solar activity is expected to be low through the period (16 – 18 April).
Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels during the period (16 – 18 April).

 

Featured image: A beautiful prominence eruption shot off the east limb (left side) of the sun on Monday, April 16, 2012. This view of the flare was recorded by NASA’s Solar Dynamics Observatory. (Credit: NASA/GSFC/SDO)

If you value what we do here, create 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:

One Comment

  1. A lot of the (M1.7) plasma blowout in the thirty-three second video did not return to the sun’s surface. Thankfully the space between earth and the sun is a very large area capable of dispersing and absorbing these types of events.

Leave a reply