Feb. 19, Jurgenstock: Sirius, the brightest star in the night sky, is a Canis Majoris = HIP 32349 = SAO 151881, spectral type A0mA1. Its angular diameter is 0.006². The asteroid’s angular diameter will be 0.005², smaller than Sirius, so even an observer on the central line will see the star fade down and back up in about 1.5 seconds, the value given in the table for the maximum duration, including the effect of the star’s diameter, although there will be no complete occultation of the star. The remaining light of Sirius A is likely to render invisible the 8th-mag. white dwarf companion, Sirius B. The current 1-s cross-track error is at least 6 times the path width, so unless the orbit of the asteroid can be improved, such as with GAIA data, before the event, several stations will need to be set up across the path to ensure that even one of them has an event. The asteroid is named after Jürgen Stock, a Venezuelan astrometrist who died in 2004.