Coordinates

RA: 18^h25^m022^s.02
DEC: -00^∘00'0043''.0
Position-uncertainty [arcsec]: 6.000 × 10^-1
Galactic-longitude [deg]: 29.94
Galactic-latitude [deg]: 5.79
Coordinate-Reference

Binary System

Alternative Name: 4U 1822-000
X-ray Type: XT, XB
Mean Distance [kpc]: 6.3^[1]
Distance Range [kpc]: 3.6 - 17.0^[1]
Hydrogen Column density [10²² cm⁻²]: 0.97
^[1]
G-band Absorption [mag]: 3.38
^[1]

Compact Object

Mass[M_☉]: 1.4

Orbital Period [d]: 0.13333333333333333^[1]


soft energy band: 2.0-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:360.0 - 6000.0
soft X-ray variability: 16.67

Optical Counterpart

Spectral Type: M4-5,WD?^[1]

V [mag]: 22.0
^[1]