The partial asteroidal occultation of Betelgeuse on Jan 2, 2012
arXiv:1112.6398
Abstract
The asteroid (147857) 2005 UW381 will pass over the supergiant star Betelgeuse on January 2nd 2012. The event is visible on a limited geographical region, and the magnitude drop is only 0.01 magnitudes for a maximum duration of 3.6 seconds. The opportunity to measure this phenomenon can be interesting for dealing with extrasolar planetary transits.
arXiv comment5 pages, 8 figures, to appear in the Journal of Occultation Astronomy (ISSN 0737-6766) January-March 2012