Coordinates

RA: 17^h08^m0014^s.5
DEC: -25^∘05'30''.296
Position-uncertainty [arcsec]: 1.838 × 10^-3
Galactic-longitude [deg]: 358.59
Galactic-latitude [deg]: 9.06
Coordinate-Reference

Binary System

Alternative Name: N Oph 1977
X-ray Type: XT, BH
Mean Distance [kpc]: 8.6^[1]
Distance Range [kpc]: 6.6 - 10.6^[1]
Hydrogen Column density [10²² cm⁻²]: 0.22
^[1]
G-band Absorption [mag]: 0.78
^[1]

Compact Object

Mass[M_☉]: 6.650000095367432^[1]

Orbital Period [d]: 0.5225^[1]


soft energy band: 0.5-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:0.0 - 7670.0
soft X-ray variability: 7446601.94
hard energy band: 20.0-60.0 keV

Optical Counterpart

Gaia DR3 Name: 4112450294268643456
Mass[M_☉]: 0.44999998807907104^[1]
Spectral Type: K3V-K7V^[1]
G [mag]: 20.763(0.016)
^[1]
V [mag]: 21.50(0.10)
^[1]