SMALL COMETS - NAKED-EYE VISIBILITY

Authors
Citation
B. Rizk et Aj. Dessler, SMALL COMETS - NAKED-EYE VISIBILITY, Geophysical research letters, 24(24), 1997, pp. 3121-3124
Citations number
9
ISSN journal
00948276
Volume
24
Issue
24
Year of publication
1997
Pages
3121 - 3124
Database
ISI
SICI code
0094-8276(1997)24:24<3121:SC-NV>2.0.ZU;2-#
Abstract
We investigate an obvious consequence of the small-comet hypothesis. W e find that the 30-ton cloud of water-ice particles formed by a small comet would survive long enough to be an unmistakably bright object. T he visual magnitude of such clouds would be between that of a bright s tar and the full Moon. A whole-Earth small-comet flux of 20/min implie s the sudden appearance of at least two bright patches of light every five minutes. The two-hour periods after sunset and before sunrise oug ht to produce the most spectacular sightings - intermittent punctuatio ns of bright rapidly-moving points of light. Because such events are n ot reported, we conclude that this class of object does not exist in d etectable numbers.