Coordinates

RA: 17^h31^m44^s.223
DEC: -16^∘57'40''.853
Position-uncertainty [arcsec]: 8.860 × 10^-5
Galactic-longitude [deg]: 8.51
Galactic-latitude [deg]: 9.04
Coordinate-Reference

Binary System

Alternative Name: GX 9+9
X-ray Type: AS
Mean Distance [kpc]: 5.0^[1]
Distance Range [kpc]: 4.4 - 7.0^[1]
Hydrogen Column density [10²² cm⁻²]: 0.31
^[1]
G-band Absorption [mag]: 0.94
^[1]

Compact Object

Mass[M_☉]: 1.4^[1]

Orbital Period [d]: 0.17500000000000002^[1]


soft energy band: 0.2-12.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:105.97 - 3786.89
soft X-ray variability: 35.74
hard energy band: 20.0-40.0 keV

Optical Counterpart

Gaia DR3 Name: 4124499769144146688
Mass[M_☉]: 0.45^[1]

G [mag]: 16.9865(0.0029)
^[1]
V [mag]: 16.799999237060547
^[1]
J [mag]: 14.42(0.05)
^[1]
H [mag]: 13.85(0.06)
^[1]
K [mag]: 13.64(0.07)
^[1]
W1 [mag]: 13.335(0.027)
^[1]
W2 [mag]: 13.494(0.026)
^[1]