大约 1,600 光年前, 有一双子星名为J0806, 每321秒两个白矮星互相环绕一圈就象跳舞一样。加拿大天文台的数据显示， 天文学家相信，两个星球在过去某段时间环绕小轨道运行而且越来越接近，因此最终合二为一。
Depicted in this artist's vision, the death spiral of the remarkable J0806 system is a consequence of Einstein's theory of General Relativity that predicts the white dwarf stars will lose their orbital energy by generating gravity waves. In fact, J0806 could be one of the brightest sources of gravitational waves in our galaxy, directly detectable by future space-based gravity wave instruments.
图片出处: NASA/Tod Strohmayer (GSFC)/Dana Berry (Chandra X-Ray Observatory)
