Coordinates

RA: 18^h19^m21^s.633
DEC: -25^∘24'25''.843
Position-uncertainty [arcsec]: 2.754 × 10^-5
Galactic-longitude [deg]: 6.77
Galactic-latitude [deg]: -4.79
Coordinate-Reference

Binary System

Alternative Name: SAX J1819.3-2525
X-ray Type: XT, MQ, BH
Mean Distance [kpc]: 4.67^[1]
Distance Range [kpc]: 4.14 - 5.5^[1]
Hydrogen Column density [10²² cm⁻²]: 0.34
^[1]
G-band Absorption [mag]: 1.18
^[1]

Compact Object

Mass[M_☉]: 6.400000095367432^[1]

Orbital Period [d]: 2.8173^[1]


soft energy band: 0.3-8.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:0.01 - 292800.0
soft X-ray variability: 45046153.85
hard energy band: 20.0-60.0 keV

Optical Counterpart

Gaia DR3 Name: 4053096388919082368
Mass[M_☉]: 2.9000000953674316^[1]
Spectral Type: B9III^[1]
G [mag]: 13.610(0.009)
^[1]
V [mag]: 13.654000282287598
^[1]
J [mag]: 12.532(0.032)
^[1]
H [mag]: 12.364(0.028)
^[1]
K [mag]: 12.270(0.032)
^[1]
W1 [mag]: 12.331(0.012)
^[1]
W2 [mag]: 12.560(0.010)
^[1]