SOLAR WATCH: Sunspot 2322 Erupts With A Farsided Coronal Mass Ejection On The Sun – No Impact On Our Geomagnetic Field! UPDATE: Magnetic Filament Being Monitored By Astronomers – Filament Is 5 Times Taller And 25 Times Longer Than Earth!

April 25, 2015 – SPACE
– Earth facing solar activity remains at low levels with no noteworthy solar flares to report.

The farside of the sun is a different story however. Updated coronagraph imagery reveals a halo coronal mass ejection (CME) leaving the other side of the sun beginning at approximately 14:30 UTC (April 25).

WATCH: Farsided Coronal Mass Ejection.

The source of this event is possibly old region 2322 from the previous rotation. The active region won’t return back into view until May 5th or so.

This event will have no impact on our geomagnetic field.

Magnetic Filament

For the 4th day in a row, amateur astronomers around the world are monitoring a filament of magnetism snaking over the sun’s northeastern limb. This morning, Bill Hrudey photographed the structure from his observatory in the Cayman Islands:

Filled with hot-glowing plasma, the magnetic filament is more than 5 times taller than Earth and 25 times as long. These dimensions make it an easy target for backyard optics. “I used a Lunt solar telescope to take this picture,” says Hrudey.

Bushy solar filaments like this one often become unstable and erupt. Debris falling to the sun’s surface can produce secondary explosions called Hyder flares–a type of flare that happens without an underlying sunspot.


Solar activity declined to low levels with only minor C-Flares detected from behind the west limb. Activity should continue at quieter levels in the short term with only a small chance for an isolated M-Flare.

The coronal mass ejection (CME) observed on Thursday originating from behind the west limb was directed away from Earth.


High-latitude auroras are possible on April 25th when Earth crosses through a fold in the heliospheric current sheet. This is called a “solar sector boundary crossing,” and NOAA forecasters estimate a 30% chance of polar geomagnetic storms when it occurs.

Solar Ham | Space Weather.

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