Solar activity - page 30

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Geomagnetic storm in progress!

UPDATE (2011-10-25, 14:10):Many observers, especially in the deep south, commented on the pure red color of the lights they saw. These rare all-red auroras sometimes appear during intense geomagnetic storms. They occur some 300 to 500 km above Earth's surface and

October 25, 2011

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Sun blasted CME toward Mars

A bright CME blasted off the sun on Oct. 22nd, and it appears to be heading for Mars. Analysts at the Goddard Space Weather Lab expect the cloud to reach the Red Planet on Oct. 26th (forecast track). A brief discussion of what CMEs can do to Mars follows this SOHO

October 23, 2011

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Significant CME heading toward Mars

A significant CME blasted off the sun today, Oct. 22nd, around 1100 UT. Analysts at the Goddard Space Weather Lab say the cloud is heading for Mars, due to hit the Red Planet on Oct. 26th.  (movie, forecast track)While looking at the latest STEREO Ahead images,

October 22, 2011

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New sunspot record

The official Sunspot number for Oct 21,2011 is 207. This is a new record for Solar Cycle 24. Despite the amount of Sunspots, only low level M-Class flares have taken place thus far. This could soon change. Solar activity has been moderate with low level

October 22, 2011

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Another level M-Class flare

Another low level M-Class flare, this time raching M1.3 took place at 13:00 UTC Friday morning. The source of this flare was Sunspot 1319 which is approaching the western limb.Space Weather Prediction Center has just released a new page and tool to help predict

October 21, 2011

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Sun is active again: M1.6 flare & sundiving comet

A Solar Flare reaching M1.6 peaked at 03:25 UTC Thursday morning and appears to be centered off the northwest limb near Sunspot 1318 which is rotating out of direct earth view.Solar activity remains at fairly low levels with only small to mid sized C-Class flares

October 20, 2011

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Sundiving comet recorded by Lasco C3

Sundiving or Sun-Grazing comet has been found on the Soho Lasco C3 instrument during October 18th. Impact is expected late Oct 19th or early Oct 20th. Here is the video by SolarWatcher recorded from SOHO Lasco C3 instruments:The Sun is pretty quiet for now

October 19, 2011

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The large sunspot cluster 1319 harboring energy for solar flares

Active region 1319 contains many individual sunspots. The swarm is growing. Over the weekend, the sunspot group's total area nearly tripled as shown in this movie from the Solar Dynamics Observatory: As AR1319 has grown, the complexity of its magnetic field

October 17, 2011

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Farside CME hurled toward Mercury and Venus

An active region on the far side of the sun erupted on October 14 and hurled a significant coronal mass ejection toward Mercury and Venus. Analysts at the Goddard Space Flight Center expect the cloud to hit the innermost planet on October 15 around 08:30 UTC....

October 14, 2011

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Minor geomagnetic storming underway

Minor geomagnetic storming (G1 on the Geomagnetic Storm Scale) is underway following the arrival at Earth of 1 or more Coronal Mass Ejections that erupted from the Sun late last week and into the weekend.  Activity is not expected to strengthen much beyond current

October 06, 2011

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Farside CME heading for Mercury

Yesterday, October 4th, something exploded on the far side of the sun and propelled a spectacular CME into space. The Solar and Heliospheric Observatory recorded the cloud as it emerged from behind the sun's limb:Analysts at the Goddard Space Weather Lab have

October 05, 2011

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Comet and Coronal mass ejection

A comet discovered by amateur astronomers on Friday, Sept. 30th, disintegrated in spectacular fashion the very next day when it plunged into the sun. The Solar and Heliospheric Observatory recorded the comet's last hours. The end was punctuated by an unexpected

October 04, 2011

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Double eruption on Sun

On October 1st around 10:17 UT, widely-spaced sunspots 1302 and 1305 erupted in quick succession, revealing a long-distance entanglement which was not obvious before. NASA's Solar Dynamics Observatory (SDO) recorded the movie of the double blast:Since it was

October 02, 2011

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Sundiving comet

A comet is diving into the sun today. Discovered on Sept. 29th by a group of four independent comet hunters (M. Kusiak, S. Liwo, B. Zhou and Z. Xu), the icy visitor from the outer solar system is evaporating furiously as it approaches the hot star. SOHO (the Solar and

October 01, 2011

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Solar wind blasts Mercury

At a NASA teleconference yesterday, researchers working with data from the Messenger spacecraft offered new evidence that gusts of solar wind are penetrating Mercury's magnetic field and eroding material off the planet's surface. The spacecraft has actually flown

September 30, 2011

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Aurora reverberations

A CME hit Earth's magnetic field on Sept. 26th, sparking one of the strongest magnetic storms in years. At the peak of the Kp=8 disturbance, auroras were sighted around both poles and more than half a dozen US states. Magnetic reverberations continued for more than 48

September 29, 2011

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Minor geomagnetic storm in progress

A minor geomagnetic storm erupted earlier today, Sept. 28th, causing beautiful Wednesday-morning auroras in Canada and some northern-tier US states. These are, essentially, aftershocks of the severe storm on Sept. 26th. More reverberations are possible tonight.

September 28, 2011