Coordinates

RA: 17^h32^m02^s.149
DEC: -24^∘44'44''.161
Position-uncertainty [arcsec]: 7.873 × 10^-5
Galactic-longitude [deg]: 1.94
Galactic-latitude [deg]: 4.79
Coordinate-Reference

Binary System

Alternative Name: 3U 1728-24
X-ray Type: XP, DS
Mean Distance [kpc]: 4.3^[1]
Distance Range [kpc]: 3.0 - 15.0^[1]
Hydrogen Column density [10²² cm⁻²]: 1.66
^[1]
G-band Absorption [mag]: 5.8
^[1]

Compact Object

Mass[M_☉]: 1.35^[1]

Orbital Period [d]: 1160.8^[1]
Pulse Period [s]: 138.17^[1]

soft energy band: 3.0-10.0 keV
hard energy band: 20.0-60.0 keV

Optical Counterpart

Gaia DR3 Name: 4110236324513030656
Mass[M_☉]: 1.22^[1]
Spectral Type: M6IIIe^[1]
G [mag]: 15.518(0.024)
^[1]
V [mag]: 18.399999618530273
^[1]
J [mag]: 10.095(0.022)
^[1]
H [mag]: 8.70(0.05)
^[1]
K [mag]: 7.979(0.024)
^[1]
W1 [mag]: 8.83(0.05)
^[1]
W2 [mag]: 10.19(0.08)
^[1]