SMM C/P CME Event

23 April 1989 --- Day of Year (DOY): 113

4 images of a prominence eruption seen over the southeast limb of the sun on April 23, 1989. Solar north points toward the upper left corner in each image.

Event Information

Event Description

Thick loop/cavity with highly structured, `question-mark' shaped (prominence) core. Event is superposed on streamer. Region is partially blown out. Deflections. Data is streaked.

Event Properties

Start/Stop Times in SMM Coronagraph Field of View: April 23 08:51 to 12:48
Central Position Angle: 143 degrees
Width (in degrees): 044
Speed (in km/sec): 477 <--- Back Edge of Question Mark (prominence)

Image List:

April 23, 1989: 04:03 UT April 23, 1989: 06:36 UT

April 23, 1989: 08:51 UT April 23, 1989: 09:42 UT

April 23, 1989: 09:51 UT April 23, 1989: 09:59 UT

April 23, 1989: 10:07 UT April 23, 1989: 10:16 UT

April 23, 1989: 11:32 UT April 23, 1989: 4 images in one frame

SMM Mass Ejection Catalogue:

Detailed information on all SMM mass ejections is available in the
SMM Catalogue of Coronal Mass Ejections

< > Go to SMM C/P CME home page

Web Editor:
Andrew L. Stanger ( stanger@ucar.edu)
Last revised: 29 August 2000