KS 1731-260
Coordinates
RA: 17
h
34
m
13
s
.448
DEC: -26
∘
05'0018''.7
Position-uncertainty [arcsec]: 1.006 × 10
0
Galactic-longitude [deg]: 1.07
Galactic-latitude [deg]: 3.65
Coordinate-Reference
Binary System
X-ray Type: XB, XT
Mean Distance [kpc]: 8.2
[1]
Distance Range [kpc]: 7.2 - 9.2
[1]
Hydrogen Column density [10
22
cm
−2
]: 1.3
[1]
G-band Absorption [mag]: 4.53
[1]
Compact Object
Mass[M
☉
]: 1.4
Pulse Period [s]: 0.0019
[1]
soft energy band: 3.0-10.0 keV
soft-band flux [10
-12
erg cm
-2
s
-1
]:0.0 - 12500.0
soft X-ray variability: 6419648.48
hard energy band: 20.0-60.0 keV
Optical Counterpart
J [mag]: 17.32(0.20)
[1]
H [mag]: 17.70(0.20)
[1]
K [mag]: 16.36(0.18)
[1]