Summary of LASCO/EIT
What is LASCO?
What is EIT? (external link)
RealTime Movies (SOHO Movie Theater)
Database Queries and Download
CME Queries (New!)
FITS Header Keywords
Coronal Mass Ejections
LASCO Sky Map
LASCO C3 Planet transits (via Sungrazer)
Latest Site Updates
Team and Operations
LASCO/C1 at MPAe (Germany)
LASCO at LAS (France)
Solwind Images and CMEs
SOHO Home page
SOHO and SOHO Instruments
Other Solar Satellites and Observatories
Note: Use a MPEG or GIF viewer to view movies and images. Web browsers such as Mosaic or Netscape often reserve lots of colors for themselves and leave few for use by other applications.
C3 Coronagraph Movie 22-27 December 1996 Image Cadence ~50 minutes between frames
C2 Coronagraph Movie 22-27 December 1996 Image Cadence ~30 minutes between frames
C3 Coronagraph Movie of January 15, 1996 CME. Image cadence about 6 minutes.
C2 and C3 Coronagraph Movie of the February 3, 1996 CME. (42 frames)
C3 Movie of the wobble of the F-corona (Zodiacal light) throughout the year. This wobble is due to the difference between the plane of the solar equator and the plane of symmetry of the F-corona. To view the MVI file you need to download one of the IDL movie routines, e.g. MVIPLAY.PRO. You will also need the IDL software, a commercial product from Research Systems, Inc.
InflowsInflows Seen in C2
These are running difference movies where each frame has the previous frame subtracted from it. This technique is useful in detecting changes in a scene.
Running difference images, showing changes (proper motions): Oct. 18 -19, 1999: collapsing loops at the east* limb Dec. 29, 1999: major stream of collapsing loops at the east limb Feb. 6-7, 2000: converging inflows at the west limb (a recurrence of the Dec. 29, 1999 stream) Sep. 27, 2000: west-limb inflows changing from points to loops as they move across the C2 field of view (part of the stream described in Fig.2 of our November 20, 2001 ApJ Letters paper)
Sharpened Ratio Inflow Movies
Oct. 24, 1999: west-limb images showing a "sinking column" with a long dark (evacuated) tail (the same stream shown on Dec. 29, 1999, and Feb. 6-7, 2000 in running difference images) Jan. 14, 2000: west-limb images showing dark inflow tails that are caught up in the fight between a small CME and the long-lived inflow stream (seen in the Oct. 24, 1999; Dec. 29, 1999; and Feb. 6-7, 2000 movies) Feb. 08, 2000: west-limb inflows, developing dark, snakelike tails as they move inward (part of the long-lived stream mentioned above) Mar. 21, 2000: dark tear-drop shaped features curving downward around the side of a slowly rising coronal structure on the east limb (also part of the long-lived inflow stream seen in the Oct. 24, Dec. 29, Jan 14, and Feb 6-7 & 8 movies. * We use the usual convention that east is to the left when looking up at the sky, but on the right when looking down on maps of the Earth. ************************************************************************
Additional information can be found in the following papers: 1. "Coronagraph Observations of Inflows During High Solar Activity", Wang, Y.-M., Sheeley, N.R., Jr., Howard, R.A., St. Cyr, O.C., & Simnett, G.M.: 1999, Geophys. Res. Letters 26, 1203. 2. "The Dynamical Nature of Coronal Streamers", Wang, Y.-M., Sheeley, N.R., Jr., Socker, D.G., Howard, R.A., & Rich, N.B.: 2000, J. Geophys. Res. 105, 25133. 3. "Coronal Inflows and the Sun's Nonaxisymmetric Open Flux", Sheeley, N.R. Jr., Knudson, T.N., & Wang, Y.-M.: 2001, Astrophys. J. Letters 546, L131. 4. "Coronal Inflows and Sector Magnetism", Sheeley, N.R., Jr. & Wang, Y.-M.: 2001, Astrophys. J. Letters 562, L107. 5. "Observations of Core Fallback During Coronal Mass Ejections", Wang, Y.-M. & Sheeley, Jr., N.R.: 2002, Astrophys. J. 567,1211. 6. "Characteristics of Coronal Inflows", Sheeley, N.R. Jr. & & Wang, Y.-M.: 2002, Astrophys. J. 579, 874
Comets and Planets
Comet Hyakutake - May 1-6, 1996
Comet Macholtz 1 - Jan 2002 (Java Movies)
C3 Movie of non-Kreutz comet SOHO-46 (April 11-12 1998).
Comet C/2002 V1
Sixteen Quickloop movies of the comet NEAT V1 have been created. There are 4 filters, orange, red, blue, and IR (abreviated as o,r,b,i respectively). There are two different regions images: x-256:1023, y-512:1023 on the 16th and 17th, x-768:1023, y-0:1023 on the 18th and 19th, referenced as 1 and 2 respectively. Both short, s, and long, l, exposures were taken in each filter. Thus there are 4*2*2=16 movies. The movies are labeled with the 1 lette5r designation for the filter, s or l to indicate exposure time, and 1 or 2 to indicate region.
Transit of Mercury