MXB 1658-298 / MXB 1659-29

DSS color 2MASS AllWISE GLIMPSE 360 XMM Chandra

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Binary

Orbital Period: 7.1161099$\pm$3e-07 hr [2018MNRAS.473.3490I]
Eccentricity:
Radial Velocity: -49.0$\pm$16.0 km/s [2018MNRAS.481L..94P]

Donor

Spectral Type:
Mo: 0.9$\pm$0.3 M$_{\odot}$ [2018MNRAS.473.3490I]

Accretor

Type: NS [2008ApJS..179..360G]
Mx:
Spin Period: 0.001749$\pm$1.5e-05 s [2001ApJ...549L..71W]
X-ray Bursts: yes [2008ApJS..179..360G]