Coordinates

RA: 20^h02^m049^s.58
DEC: +25^∘14'0011''.3
Galactic-longitude [deg]: 63.37
Galactic-latitude [deg]: -3.0
Coordinate-Reference

Binary System

Alternative Name: QZ Vul
X-ray Type: RP, BH, XT, PSH, US
Mean Distance [kpc]: 2.0^[1]
Distance Range [kpc]: 1.6 - 2.6^[1]
Hydrogen Column density [10²² cm⁻²]: 0.8
^[1]
G-band Absorption [mag]: 2.79
^[1]

Compact Object

Mass[M_☉]: 7.5^[1]

Orbital Period [d]: 0.3441666666666667^[1]


soft energy band: 1.0-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:0.0 - 120000.0
soft X-ray variability: 50000000.0

Optical Counterpart

Mass[M_☉]: 0.33000001311302185^[1]
Spectral Type: K3V-K6V^[1]

V [mag]: 18.200000762939453
^[1]