Coordinates

RA: 18^h45^m01^s.589
DEC: -04^∘33'56''.733
Position-uncertainty [arcsec]: 2.694 × 10^-5
Galactic-longitude [deg]: 28.14
Galactic-latitude [deg]: -0.66
Coordinate-Reference

Binary System

Alternative Name: AX 1845.0-0433
X-ray Type: SG,XT
Mean Distance [kpc]: 5.2
Distance Range [kpc]: 4.42 - 6.08

Compact Object

Orbital Period [d]: 5.72^[1]


XMM-Newton flux [10^-12 erg cm^-2 s^-1]:2.74 - 42.62 (0.2-12.0 keV)
Chandra flux [10^-12 erg cm^-2 s^-1]:3.49 (0.5-7.0 keV)
Swift/XRT flux [10^-12 erg cm^-2 s^-1]:36.23 (0.3-10.0 keV)

Optical Counterpart

Gaia DR3 Name: 4258160560148155648
Counterpart: tentative
Spectral Type: O9.5I^[1][2][3]
G [mag]: 12.7553(0.0029)
V [mag]: 14.06
J [mag]: 9.746(0.026)
H [mag]: 9.259(0.028)
K [mag]: 8.948(0.025)
W1 [mag]: 8.599(0.012)
W2 [mag]: 8.648(0.009)

Other references

1995PASJ...47..189Y
2013A&A...560A.108C