Astronomy Picture of the Day . Fragments of Comet LINEAR . ... The question is definitely relevant to comet LINEAR (C/1999 S4 LINEAR) whose nucleus apparently fragmented late last month during its first trip through the inner solar system. This computer enhanced composite image shows faint stars as trails and the remnants of LINEAR's nucleus as a flock of "mini-comets" embedded in a cloud of gas and dust. ... Publications with keywords: comet - nucleus - comet linear - C/1999 S4 comet . ...