by worcspaul » Tue Sep 21, 2010 10:36 am
I rather think the "impact" is an optical illusion. The object in motion could be an aircraft or satellite that just catches the sun as it reaches the edge of the Moon's disc, giving the impression of a plume of ejecta. The apparent speed of travel, to me, suggests a satellite.
Though Heavens Above is a useful site for predictions, it would be useful if it provided historical data as well, so that you could put date/time in and have it display was was passing over at that moment. Don't know if there are any web sites out there that do that.