... Stars and Dust Across Corona Australis . ... Cosmic dust clouds sprawl across a rich field of stars in this sweeping telescopic vista near the northern boundary of Corona Australis, the Southern Crown. Less than 500 light-years away the dust clouds effectively block light from more distant background stars in the Milky Way. ... Actually, given how close Gliese 1214b is to its parent star, any water, if it exists, would surely be in the form of steam. ... A type of arcus cloud called a roll cloud. ...