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Recent Events Reported by Observers

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Detected by halocme, Submitted at 2017-03-30T20:01:38
2017-03-28T09:00:09 --> 2017-03-28T18:00:09
The prominence eruption was captured first in 304 A images, in which it was hard to trace it to higher altitudes. The eruption at later times was seen better in 171 A images. No obvious CME associated.

Movie

Detected by halocme, Submitted at 2017-03-30T17:40:41
2017-03-24T00:00:09 --> 2017-03-30T13:00:09
On 30 March 2017 we see two sunspot active regions, AR 12644 (north) and 12645 (south). AR 12644 already showed bright coronal structures close to the east limb on 24 March. It had the largest growth on 26 March in terms of the region size and transient activity (one C-class and many B-class flares). The emergence of AR 12645 was seen during the second half of 26 March. Its most active period was 27 March. As soon as both of the leading and trailing spots got established, both ARs became less active. They may not produce major events unless they are triggered from outside the ARs.

Movie

Detected by halocme, Submitted at 2017-03-30T07:38:40
2017-03-27T16:30:01 --> 2017-03-27T19:30:01
There were three eruptions between 17:00 UT and 18:30 UT. First, large-scale motions seemed to precede the footpoint brightening of the C1.6 flare that peaked at 17:12. Then more violent eruption was seen associated with a B4.1 flare peaking at 17:43 (here it seems that flare=post-eruption arcade) slightly closer to the limb. Finally the footpoint brightening of theC5.1 flare that peaked at 18:20 seemed to precede an eruption, which appeared not as significant as the first two. The SEEDS catalog does not contain LASCO images around these events, but a CME is seen in https://cdaw.gsfc.nasa.gov/movie/make_javamovie.php?img1=lasc2rdf&img2=goesx&stime=20170327_1800&etime=20170327_2359.

Movie

Detected by halocme, Submitted at 2017-03-30T07:38:40
2017-03-27T16:30:01 --> 2017-03-27T19:30:01
There were three eruptions between 17:00 UT and 18:30 UT. First, large-scale motions seemed to precede the footpoint brightening of the C1.6 flare that peaked at 17:12. Then more violent eruption was seen associated with a B4.1 flare peaking at 17:43 (here it seems that flare=post-eruption arcade) slightly closer to the limb. Finally the footpoint brightening of theC5.1 flare that peaked at 18:20 seemed to precede an eruption, which appeared not as significant as the first two. The SEEDS catalog does not contain LASCO images around these events, but a CME is seen in https://cdaw.gsfc.nasa.gov/movie/make_javamovie.php?img1=lasc2rdf&img2=goesx&stime=20170327_1800&etime=20170327_2359.

Movie

Detected by halocme, Submitted at 2017-03-30T07:10:31
2017-03-27T10:50:25 --> 2017-03-27T13:00:25
This flare occurred in a newly emerging region AR 12645. The eruption coincided with the flare impulsive phase, and the movie captures both the erupting flux rope and driven front. The corona above the AR was temporarily dimmed. The associated CME is http://spaceweather.gmu.edu/seeds/mkmovie.php?cme=20170327.121207.w047.v0180.p090&frame=19&r.

Movie

Detected by halocme, Submitted at 2017-03-30T07:10:31
2017-03-27T10:50:25 --> 2017-03-27T13:00:25
This flare occurred in a newly emerging region AR 12645. The eruption coincided with the flare impulsive phase, and the movie captures both the erupting flux rope and driven front. The corona above the AR was temporarily dimmed. The associated CME is http://spaceweather.gmu.edu/seeds/mkmovie.php?cme=20170327.121207.w047.v0180.p090&frame=19&r.

Movie

Detected by halocme, Submitted at 2017-03-30T07:02:31
2017-03-26T21:35:25 --> 2017-03-26T22:25:25
This probably came from slightly behind the limb, not affecting a nice thin structure (current sheet?) in the foreground.

Movie

Detected by halocme, Submitted at 2017-03-30T06:57:30
2017-03-25T06:30:01 --> 2017-03-25T12:00:01
This can easily escape detection, since it is slow and diffuse. It is seen only in 304 A images. Such an eruption may not be related to a CME.

Movie

Detected by halocme, Submitted at 2017-03-30T07:40:46
2017-03-25T03:30:01 --> 2017-03-25T05:00:01
The eruption was mostly in the southwest direction (in image plane) and we see some mild effects there (dimming, chromospheric brightening, etc.)

Movie

Detected by halocme, Submitted at 2017-03-30T06:36:05
2017-03-24T16:30:01 --> 2017-03-24T18:30:01
The source region was slightly behind the limb. In difference images in 211 A and 193 A, the front is seen ahead of the prominence. Indeed this eruption was associated with a CME (http://spaceweather.gmu.edu/seeds/mkmovie.php?cme=20170324.174809.w030.v0340.p098&frame=14&r).

Movie

Detected by halocme, Submitted at 2017-03-30T06:28:17
2017-03-24T15:30:01 --> 2017-03-24T16:56:01
The initial stage of the eruption looked like containing a flux rope, but then a jet-like appearance took over.

Movie

Detected by halocme, Submitted at 2017-03-30T06:12:21
2017-03-24T02:10:13 --> 2017-03-24T02:46:13
Jets of this size are not frequently seen in this particular coronal hole. This jet appears to coincide with the appearance of a magnetic element of parasitic polarity.

Movie

Detected by halocme, Submitted at 2017-03-30T05:59:24
2017-03-23T21:50:25 --> 2017-03-23T23:00:25
This occurred in a quiescent region. The filament was in inverse-S, following the hemispheric rule, and gave an impression that it erupted untwisted seen as a counterclockwise rotation.

Movie

Detected by halocme, Submitted at 2017-03-30T05:50:04
2017-03-22T16:40:13 --> 2017-03-22T19:40:13
There was a minor eruption in AR 12643. The movie gives an impression that it started when the disturbances from a larger-scale filament eruption (in a NW region) hit the region. This eruption appears to be associated with a narrow CME (http://spaceweather.gmu.edu/seeds/mkmovie.php?cme=20170322.182407.w027.v0282.p073&frame=15&r).

Movie

Detected by halocme, Submitted at 2017-03-30T05:50:04
2017-03-22T16:40:13 --> 2017-03-22T19:40:13
There was a minor eruption in AR 12643. The movie gives an impression that it started when the disturbances from a larger-scale filament eruption (in a NW region) hit the region. This eruption appears to be associated with a narrow CME (http://spaceweather.gmu.edu/seeds/mkmovie.php?cme=20170322.182407.w027.v0282.p073&frame=15&r).

Movie

Detected by halocme, Submitted at 2017-03-30T05:40:12
2017-03-22T08:30:01 --> 2017-03-22T10:30:01
A jet-like eruption was followed by a flux-rope-like eruption in AR 12643. The second event accompanied a slow and diffuse global wave to south.

Movie

Detected by Wei Liu, Submitted at 2017-03-22T01:09:02
2017-03-14T05:40:44 --> 2017-03-14T07:55:12
A prominence on the NW limb exhibited some wavy motions, suggestive of the presence of Alfvenic waves (similar to the Hinode detection of Alfven waves in prominences by Okamoto et al. 2007)

Movie

Detected by gchintzo, Submitted at 2017-03-20T18:45:06
2017-03-19T07:30:09 --> 2017-03-20T00:10:09
A filament structure (seen as blue-ish dark material) becomes unstable and lifts, pushing coronal magnetic field aside and forming a "CME bubble" (dark cavity), the initial counterpart of a CME in the low corona.

Movie

Detected by gchintzo, Submitted at 2017-03-20T17:49:17
2017-03-16T19:50:09 --> 2017-03-18T00:00:09
A transequatorial coronal hole in the E hemisphere of the sun. Coronal holes are areas of decreased plasma emission above areas of unipolar magnetic field (consider as one of the sources of solar wind)

Movie

Detected by Magnus Woods, Submitted at 2017-03-18T19:57:01
2017-02-25T21:55:51 --> 2017-02-25T22:16:53
A small B-class flare is observed in AR 12628, with very clear flare ribbons.

Movie

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