Solar activity - page 29


Another Venus-directed CME

A magnetic prominence dancing along the sun's southeastern limb became unstable on Nov. 15th and slowly erupted. NASA's Solar Dynamics Observatory recorded the coronal mass ejection (CME), which unfolded over a period of thirteen hours: The eruption hurled a cloud

November 16, 2011


Pair of M-Class flares and eruption filament

A pair of M-Class flares took place on Tuesday morning. The first one registered M1.2 and was centered around Sunspot 1348 which is located near the northwest limb. The second event at 12:43 UTC peaked at M1.9 and was located around Sunspot 1346 in the southern

November 15, 2011

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Venus-directed CME

A coronal mass ejection (CME, movie) that swept past Mercury on Nov. 13th will likely hit Venus later today. Because Venus has no global magnetic field to protect it, the impact could erode material directly from the top of the planet's atmosphere. Venus has atmosphere

November 14, 2011


New time-lapse video from ISS

The latest time-lapse sequence of photographs by ISS Space crew shows period fromAugust to October, 2011 with amazing auroras. Images was put together by Michael König. These views are taken with a special low-light 4K-camera now on the Space Station.You can see

November 14, 2011


Huge solar filament and Mercury-directed CME

There haven't been any strong solar flares in days. Nevertheless, some impressive activity is underway on the sun. For one thing, an enormous wall of plasma is towering over the sun's southeastern horizon. Huge solar filament is the biggest in a longer time period. A

November 13, 2011


Incoming CME

Yesterday, Nov. 9th around 1330 UT, a magnetic filament in the vicinity of sunspot complex 1342-1343 erupted, producing a M1-class solar flare and hurling a CME into space. The Solar and Heliospheric Observatory recorded the progress of the expanding plasma

November 10, 2011


M-class solar flare, possibly Earth-directed CME

M-class solar flare reaching M1.1 took place at 13:35 UTC Wednesday morning around Sunspot 1342 which is located in the northeast quadrant. It now looks like a Coronal Mass Ejection (CME) resulted and a portion of it may be Earth Directed. A region located on the

November 09, 2011


Comparing Sunspot 1339

Sunspot 1339 is indeed one of the largest Sunspot groups in years. Here is a size comparison of 1339 vs. a couple of the largest Sunspots from Cycle 23. Sunspot 9393 was responsible for the second largest Solar Flare in recorded history (X20) back in April 2001.

November 09, 2011

Alan Friedman AR1339_1320553017_med

Sun's Active Region 1339 facing Earth

If you look in sun direction in time of sunset you could see the largest sunspots since 2005 . Active region 1339 is now visible from the Earth. These huge sunspots have been slowly rotating to face the Earth since November 3, 2011. The largest of these sunspots,

November 06, 2011

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A Guide for Solar Watchers - Part 1

A Guide for Solar Watchers pt.1 - Sun basics For all those who don't quit understand what is happening with our Sun and what is space weather we decided to make A Guide for Solar Watchers. We will start with solar basics - structure, characteristics, solar

November 05, 2011

Chris Schur SOL110311 1Schur_1320380900_med

Eruptions this weekend could be Earth-directed as Sunspot 1339 turns toward our planet

Sunspot 1339 has quieted since Nov. 3rd when it unleashed an X2-class solar flare. Nevertheless, it still poses a threat for powerful eruptions. The behemoth sunspot has a "beta-gamma-delta" magnetic field that harbors energy for more X-flares. Eruptions this weekend

November 05, 2011


Big sunspot starting to release X-class solar flares

NOAA forecasters have upgraded the chance of X-class solar flares today to 20%. The source would be AR1339, one of the biggest sunspots in many years. The active region rotated over the sun's eastern limb two days ago and now it is turning toward Earth.The Radio

November 04, 2011


Large sunspot group harbors energy for M-class solar flares

A large sunspot group is rotating over the sun's northeastern limb, possibly signaling an uptick in solar activity. Measuring some 40,000 km wide and at least twice that in length, the behemoth active region is an easy target for backyard solar

November 02, 2011


Minor geomagnetic storm subsiding

The solar wind was at increased levels Tuesday morning and combined with a south tilting Bz, it stirred up a minor geomagnetic storm at high latitudes. Things have since returned to quieter levels.Solar activity increased to moderate levels Monday with three M-Class

November 01, 2011


Three M-class solar flares at northeast limb

An M1.1 Solar Flare peaked at 15:08 UTC Monday morning and was centered around a new region located on the Northeast Limb. Stay Tuned for increasing solar activity.The second and third M-Class Flares of the day has taken place around the new region hiding on the

October 31, 2011


Solar cycle 24 on its way

Science has only just begun to understand how cyclical changes in the Sun effect Earth's weather and climate. But the more technological human society grows, the more vulnerable we may become.Activity on the Sun is due to reach its peak around early 2014, so expect

October 28, 2011

Bob S Matzen Tonight01_1319513840_med

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