Coordinates

RA: 18^h14^m031^s.08
DEC: -17^∘09'0026''.1
Position-uncertainty [arcsec]: 6.000 × 10^-1
Galactic-longitude [deg]: 13.52
Galactic-latitude [deg]: 0.11
Coordinate-Reference

Binary System

Alternative Name: 4U 1811-17
X-ray Type: RP, XB?, AS
Mean Distance [kpc]: 5.6^[1]
Distance Range [kpc]: 3.8 - 12.0^[1]
Hydrogen Column density [10²² cm⁻²]: 1.98
^[1]
G-band Absorption [mag]: 6.9
^[1]

Compact Object

Orbital Period [d]: 24.066666666666666^[1]


soft energy band: 0.3-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:115.0 - 64690.0
soft X-ray variability: 562.51

Optical Counterpart

Spectral Type: K5III^[1]

V [mag]: 12.73(0.09)
^[1]


K [mag]: 11.869999885559082
^[1]