During the annular eclipse the Moon will travel in front of the Sun blocking most of its light—except for what looks like a ‘Ring of Fire’ around the Moon’s edge.
Aurora over Giant’s Causeway and Ballintoy Harbour, Co. Antrim
April 24, 2012 by 2 Comments
Gorgeous aurora captured by Martin McKenna! Last night’s geomagnetic storm (April 24, 2012) put on quite a show and this was not even a large event. This is near the childhood homes of some of our esteemed Irish solar physics colleagues!
A Prominence Eruption Sends a CME to Mercury
April 22, 2012 by Leave a Comment
On April 22, 2012, filament material uncurled as an erupting prominence around sunspot group AR11463. There was a C1.8 solar flare and the resulting eruption produced a SCORE-C CME detected by SOHO/LASCO C2 at 15:30 UT.
Beautiful Eruptions from the East Limb of the Sun
April 17, 2012 by Leave a Comment
An eruption of plasma from just behind the solar limb observed by SDO with the 304 Angstrom camera.This shows material at temperatures around 60,000-80,000 Kelvin. This produced a CME that went out the left side (East) of the Sun starting around 2 UT. At ~1000 km/s the CME has a SCORE O (for ordinary). NASA produced a computer model predicting the CME will impact STEREO Behind on 4/17 at 7:40 UT (but not Earth).
