Wide binaries eccentricities with Gaia EDR3

Eccentricity of wide binaries is difficult to measure due to their long orbital periods. With Gaia's high-precision astrometric measurements, eccentricity of a wide binary can...宽双星（wide binaries）的偏心率因其轨道周期极长而难以测量。借助盖亚（Gaia）的高精度天体测量，单颗宽双星的偏心率可……