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A Stereoscopic Pair of SXT Images

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Date submitted: 19-Feb-1994

A stereoscopic pair of SXT images, using solar rotation as a substitute
for a deep-space observing platform. The time span of about 13 hours is
close to what Dave Batchelor (NSSDC) finds to be about optimum for the
strongest visual impression of three dimensions. To view this without
optical aid, you need to be able to focus your crossed or diverged eyes
and bring the two images into registration. For those who can, it is
worth the effort - look, for example, at the filament cavity in the NW
quadrant, and the sinuous structure to the S of it that winds around
the W limb. Amazing. Acton points out that the filament cavity structure
is so huge that hydrostatic effects could be causing the obvious
brightness of the legs of the loops as opposed to their tops. Also
please admire how well-defined the coronal holes appear to be in the
stereo representation. Beware of places where real temporal changes
have happened, e.g. at the S side of the N central active region or in
most of the bright points.

Submitted 19 Feb. 1994 by Batchelor and Hudson

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