V_ V381 Nor / XTE J1550-564

DSS color 2MASS AllWISE GLIMPSE 360 XMM Chandra

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Binary

Orbital Period: 37.044$\pm$0.02 hr [2002ApJ...568..845O]
Eccentricity:
Radial Velocity: -68.0$\pm$19.0 km/s [2002ApJ...568..845O]

Donor

Spectral Type: K3III [2002ApJ...568..845O]
Mo: 1.4 M$_{\odot}$ [2002ApJ...568..845O]

Accretor

Type: BH [2002ApJ...568..845O]
Mx: 9.4$\pm$1.4 M$_{\odot}$ [2002ApJ...568..845O]
Spin Period:
X-ray Bursts: