Cen X-4

Coordinates


RA: 14h58m21s.936
DEC: -31∘40'08''.406
Position-uncertainty [arcsec]: 1.468 × 10-4
Galactic-longitude [deg]: 332.24
Galactic-latitude [deg]: 23.88
Coordinate-Reference

Binary System


Alternative Name: 4U 1456-32
X-ray Type: XB, XT, RP
Mean Distance [kpc]: 0.87[1]
Distance Range [kpc]: 0.84 - 0.89[1]
Hydrogen Column density [1022 cm−2]: 0.06
[1]
G-band Absorption [mag]: 0.85
[1]

Compact Object


Mass[M☉]: 1.7000000476837158[1]

Orbital Period [d]: 0.6291666666666667[1]


soft energy band: 0.2-12.0 keV
soft-band flux [10-12 erg cm-2 s-1]:0.43 - 5.55
soft X-ray variability: 12.91

Optical Counterpart


Gaia DR3 Name: 6205715168442046592
Mass[M☉]: 0.30000001192092896[1]
Spectral Type: K3-K7V[1]
G [mag]: 17.854(0.006)
[1]
V [mag]: 12.800000190734863
[1]
J [mag]: 15.60(0.06)
[1]
H [mag]: 15.05(0.07)
[1]
K [mag]: 14.66(0.08)
[1]
W1 [mag]: 14.850(0.019)
[1]
W2 [mag]: 14.945(0.033)
[1]