Coordinates

RA: 18^h15^m006^s.18
DEC: -12^∘05'0047''.1
Position-uncertainty [arcsec]: 6.000 × 10^-1
Galactic-longitude [deg]: 18.03
Galactic-latitude [deg]: 2.4
Coordinate-Reference

Binary System

Alternative Name: Ser X-2
X-ray Type: XB, AS
Mean Distance [kpc]: 4.0^[1]
Distance Range [kpc]: 3.4 - 4.6^[1]
Hydrogen Column density [10²² cm⁻²]: 1.49
^[1]
G-band Absorption [mag]: 5.2
^[1]

Compact Object

Mass[M_☉]: 1.4

Orbital Period [d]: 0.07916666666666666^[1]


soft energy band: 1.0-10.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:480.0 - 48000.0
soft X-ray variability: 100.0
hard energy band: 20.0-60.0 keV
hard-band flux [10^-12 erg cm^-2 s^-1]:6.15 - 624.0
hard X-ray variability: 101.46