The official name is Komatsu Shrine.
In 816, when Master Kukai who founded a religious group called “Shingon Shu” was practicing asceticism at Shishikutsuji Temple, one of three big meteorites fell to the top of a hill in Katano. He headed to the place and asked local people to build a new shrine which enshrined the big meteorite as deity.
People worshiped the sacred big stone as deity relating to stars.