Compact

binary stars

Semi-major axis

Eccentricity

$A_{\max }\left(\text{km}\right)$

$A_{\min }\left(\text{km}\right)$

$E_{\max }\left(\times {10}^{-5}\right)$

$E_{\min }\left(\times {10}^{-6}\right)$

M33 X-7

−1661.80

0.00027

−1.23

0.00012

PSR J0737-3039

−48.55

0.00016

−1.23

0.00100

PSR1913+16

−51.77

0.0560

−1.68

0.0410

PSR1543+12

−60.83

0.0037

−0.62

0.00270