Sun

Solar Flare AR1944 Follow Up

tcrass 0 Comments

This is a follow up with an image and video released related to the AR1944 solar flare.  All images and video credit goes to: NASA/SDO/Goddard

Yesterday's eruption comes with a predicted 60% chance of elevated auroral activity on January 9th.  If there is activity, as nearly always, the best view will be at latitudes closer to the poles.  In addition to the auroral activity, this particular region of the Sun is still heavily active and is expected to produce additional flares.  Current estimates from NOAA put the chance of additional M-Class flares at around 80% and X-Class flares at around 50%.  Still very active!

The image below is of the explosion which is denoted by the wispy filament arcs around the central disk that obscures the Sun to provide better visibility of the atmosphere and phenomenon around it.

Below is a video of the flare erupting.

 

 

X1 Class Solar Flare Eruption From AR1944

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In case anyone hasn't seen the reports on this yet, NASA has reported that a rather large X-class (X1.2) solar flare erupted from the Sun's active region designation 1944 (AR1944) at approximately 1:32 PM EST today (January 7th, 2014).

Based on information that the Space Weather Prediction Center of NOAA (http://www.swpc.noaa.gov/) provided, the burst (which did cause radio interference at a designation of R3) was a CME (Coronal Mass Ejection) sending particles directly toward Earth.  While this burst is not expected to cause significant outages or interruptions, it is in the X-Class which is the strongest classification so it could provide some action, including aurora.

The CME is expected to impact the Earth's magnetic field beginning sometime on January 9th with possible radio and weak power grid interruptions at high latitudes.  Aurora will probably also be visible with this impact.  There is not currently detailed information about how far South any effects may be visible but, if you're interested, I suggest keeping an eye on any of the tools and resources in the links section of the site (http://www.collegeastronomy.com/useful-sites/).  Especially the last link on the page, for Space Weather Live, which will provide a good graphical representation of the visibility of auroras around the globe.

I'll try to post more updates where pertinent.

June 5th 2012 Venus Transit

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Rounding off a three-fer in Astronomical events of late is the June 5th 2012 Venus transit across the face of the Sun.

Included here is an approximation of what you should see viewing the sun from Lawrence, KS at approximately 7PM local time and an accompanying video of the transit progress from 5PM local time through sunset.

Transit Image:

Venus Transit 1900 from Lawrence, KS

Video: June 5th 2012, Venus Transit – Lawrence, KS

While this event may not seem as spectacular as the previous two eclipses (one solar on May 20th and one lunar on June 4th) this event is actually more significant because it is the very last time Venus will cross the face of the sun in our lifetime (unless we really have some astonishing medical accomplishments in the next 30-50 or so years)! The next transit will happen in the year 2117!

I'm also including a site with various viewing information here: http://www.transitofvenus.org

Again, please be safe when viewing this event. You should take the same precautions as you would for a solar eclipse or any other solar viewing event. The site above has a good section on eye safety so please view it in leiu of me regurgitating it here.

Happy viewing and be safe!