Coordinates

RA: 18^h39^m57^s.557
DEC: +05^∘02'0009''.5
Position-uncertainty [arcsec]: 1.404 × 10^-1
Galactic-longitude [deg]: 36.12
Galactic-latitude [deg]: 4.84
Coordinate-Reference

Binary System

Alternative Name: Ser X-1
X-ray Type: XB, AS, RP
Mean Distance [kpc]: 5.07^[1]
Distance Range [kpc]: 3.64 - 8.64^[1]
Hydrogen Column density [10²² cm⁻²]: 0.65
^[1]
G-band Absorption [mag]: 2.25
^[1]

Compact Object

Mass[M_☉]: 1.4^[1]

Orbital Period [d]: 0.08333333333333333^[1]


soft energy band: 2.0-10.0 keV
hard energy band: 20.0-60.0 keV

Optical Counterpart

Gaia DR3 Name: 4283919201304278912
Mass[M_☉]: 0.14^[1]
Spectral Type: G5V-M5V^[1]
G [mag]: 18.711(0.009)
^[1]
V [mag]: 19.200000762939453
^[1]
J [mag]: 15.44(0.06)
^[1]
H [mag]: 15.06(0.09)
^[1]
K [mag]: 14.73(0.11)
^[1]
W1 [mag]: 14.733(0.031)
^[1]
W2 [mag]: 14.70(0.05)
^[1]