An unusually bright shooting star shot across the sky Wednesday night, prompting sighting reports from the Chicago area to Indiana, a local astronomer said.

A green-tinted burst was reported by amateur astronomers in LaPorte, Ind., just after 8 p.m.., said Adler Planetarium Astronomer Chris Lintott.

The shooting star, which was a meteor probably about the size of 10 grains of salt, likely won't hit the ground and won't become a meteorite, he said. Meteoroids are pieces of material traveling through space that become meteors when they streak through the Earth's atmosphere and meteorites if they strike the ground.

At least two motorists on Chicago-area expressways also reported seeing the flash.

It's "Good luck for those who saw it," Lintott said. "And very beautiful."