Coordinates

RA: 18^h23^m40^s.505
DEC: -30^∘21'40''.089
Position-uncertainty [arcsec]: 5.016 × 10^-3
Galactic-longitude [deg]: 2.79
Galactic-latitude [deg]: -7.91
Coordinate-Reference

Binary System

Alternative Name: Sgr X-4
X-ray Type: GC, AS, XB, RP, PSH
Mean Distance [kpc]: 7.6^[1]
Distance Range [kpc]: 7.2 - 8.0^[1]
Hydrogen Column density [10²² cm⁻²]: 0.21
^[1]
G-band Absorption [mag]: 0.73
^[1]

Compact Object

Mass[M_☉]: 1.58^[1]

Orbital Period [d]: 0.007916666666666667^[1]


soft energy band: 4.0-10.0 keV
hard energy band: 20.0-60.0 keV

Optical Counterpart

Mass[M_☉]: 0.0651^[1]
Spectral Type: WD?^[1]

V [mag]: 18.809999465942383
^[1]