The total solar eclipse of 1994 November 3, was photographed from Putre,
Chile, by a research team from the High Altitude Observatory of the
National Center for Atmospheric Research, Boulder, Colorado.  The expedition
was sponsored by the National Science Foundation.

The photograph of the solar corona was taken with a camera system
developed by Gordon A. Newkirk, Jr.  This specialized instrument
photographs the corona in red light, 6500 A -- through a radially
graded filter that suppresses the bright inner corona in order to show
the much fainter streamers of the outer corona in the same photograph.

As the photograph was taken late in the eclipse, prominences on the
west limb are visible.  Other features of note are the polar plumes, and
the non-radial nature of the southwestern streamer.  An additional 
highlight of the SW streamer was a coronal mass ejection observed in 
its vicinity by the Mauna Loa Solar Observatory approximately 10 hours 
after the eclipse.

Credit: High Altitude Observatory.



Technical Information for image:  WLCC94_exp4

Time:     12:20:45 UT 
Pangle:   24.12 degrees    Heliocentric north is 24.12 degrees counter
                           clockwise of vertical.  Vertical (top) is
			   geocentric north.  Left, (9 o'clock) is east.

			   To assist in orientation, the brightest prominences
			   are on the WEST limb.  There is one major streamer
			   on the EAST limb, two on the WEST limb, with the
			   brightest western streamer being the one to the
			   SOUTH. 
 

Objective aperture  11.4 cm
Focal length         178 cm
Focal ratio          f/15
 
Film Kodak Technical Pan / 2415
 
Development   D19 - 5 minutes  (Film was developed at Sacramento Peak 
                                Observatory by Todd Brown)
 
Wavelength isolation filer - Schott OG-3
Effective wavelength       - 6500 A
 
Exposure  25 seconds  
 
Radial filter range - 10^4 in transmission.
 
 
 
Note:  There are round dark circular artifacts in the image.  These are
       the result of out of focus dust within the telescope.
 
 
 
 
 
ftp instructions follow:
 
    ftp 128.117.16.39
or
    ftp puu.hao.ucar.edu
 
    anonymous
        enter some identification, such as your email address
    cd mk3/pub/eclipse94   
    get data_descrip_WLCC94_exp4
    binary
    get WLCC94_exp4.tif
    quit