Coordinates

RA: 19^h55^m42^s.336
DEC: +32^∘05'48''.949
Position-uncertainty [arcsec]: 2.670 × 10^-5
Galactic-longitude [deg]: 68.39
Galactic-latitude [deg]: 1.93
Coordinate-Reference

Binary System

Alternative Name: 4U 1954+319
X-ray Type: SG
Mean Distance [kpc]: 3.26
Distance Range [kpc]: 2.54 - 3.69

Compact Object

Orbital Period [d]: 1296.6375^[1]
Pulse Period [s]: 19400.0^[1]

Chandra flux [10^-12 erg cm^-2 s^-1]:0.18 (~0.1-10.0 keV)
Swift/XRT flux [10^-12 erg cm^-2 s^-1]:158.1 (0.3-10.0 keV)
Swift/BAT flux [10^-12 erg cm^-2 s^-1]:271.2 (14-195 keV)

Optical Counterpart

Gaia DR3 Name: 2034031438383765760
Counterpart: confirmed
Spectral Type: M4 I^[1]
G [mag]: 8.3583(0.0030)
V [mag]: 9.970(0.030)
J [mag]: 4.91(0.04)
H [mag]: 3.88(0.23)
K [mag]: 3.5(0.4)
Effective stellar temperature [K]: 3558.0