ocr: LASCO LASCO Large Angle Spectroscopic Coronagraph) observes the outer solar atmosphere from near the solar limb to a distance of 21 million km, i.e. about one seventh of the distance between the Sun and the Earth. (The ground-based coronagraphs do not exceed a distance over 1.4solar radii.) The essential questions of solar physics to be addressed by LASCO are: How is the corona heated? Where and how is the solar wind accelerated? What causes coronal mass ejections, and what role do they play int the evolutionary development of the large-scale magnetic field? What are the distribution and prope ...
