Coordinates

RA: 19^h59^m24^s.008
DEC: +11^∘42'29''.826
Position-uncertainty [arcsec]: 1.500 × 10^-4
Galactic-longitude [deg]: 51.31
Galactic-latitude [deg]: -9.33
Coordinate-Reference

Binary System

Alternative Name: V1408 Aql
X-ray Type: BH?, US
Mean Distance [kpc]: 9.43^[1]
Distance Range [kpc]: 9.39 - 9.48^[1]
Hydrogen Column density [10²² cm⁻²]: 0.23
^[1]
G-band Absorption [mag]: 0.0
^[1]

Compact Object

Mass[M_☉]: 3.0^[1]

Orbital Period [d]: 0.38875^[1]


soft energy band: 0.3-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:6.97 - 1768.0
soft X-ray variability: 253.81

Optical Counterpart

Gaia DR3 Name: 4303869526257075968
Mass[M_☉]: 1.0^[1]

G [mag]: 18.316(0.012)
^[1]
V [mag]: 18.950(0.030)
^[1]
J [mag]: 18.32(0.07)
^[1]
H [mag]: 18.15(0.10)
^[1]
K [mag]: 18.15(0.12)
^[1]