Coordinates

RA: 17^h45^m035^s.65
DEC: -29^∘01'0034''.0
Position-uncertainty [arcsec]: 1.004 × 10⁰
Galactic-longitude [deg]: 359.92
Galactic-latitude [deg]: -0.04
Coordinate-Reference

Binary System

Alternative Name: 1A 1742-289
X-ray Type: XB, XT, RP, EB
Mean Distance [kpc]: 8.3^[1]

Hydrogen Column density [10²² cm⁻²]: 22.0
^[1]
G-band Absorption [mag]: 76.66
^[1]

Compact Object

Mass[M_☉]: 1.4^[1]

Orbital Period [d]: 0.3479513888888889^[1]


soft energy band: 0.2-12.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:0.0 - 327.63
soft X-ray variability: 143482.71
hard energy band: 3.0-10.0 keV
hard-band flux [10^-12 erg cm^-2 s^-1]:2.78 - 71.79
hard X-ray variability: 25.82

Optical Counterpart

Mass[M_☉]: 0.8^[1]