Coordinates
RA: 22h39m20s.839
DEC: +61∘16'26''.591
Position-uncertainty [arcsec]: 1.740 × 10-5
Galactic-longitude [deg]: 107.73
Galactic-latitude [deg]: 2.36
Coordinate-Reference
Binary System
Alternative Name: 3A 2237+608
X-ray Type: BE,XP,XT
Mean Distance [kpc]: 6.29
Distance Range [kpc]: 3.94 - 8.24
Compact Object
Orbital Period [d]: 262.0[1]
Pulse Period [s]: 1247.0[1]
Chandra flux [10-12 erg cm-2 s-1]:0.38 (0.5-7.0 keV)
Optical Counterpart
Gaia DR3 Name: 2201091578667140352
Counterpart: confirmed
Spectral Type: B0Ve[1]
G [mag]: 14.105(0.005)
V [mag]: 14.8
J [mag]: 11.450(0.026)
H [mag]: 10.955(0.031)
K [mag]: 10.557(0.021)
W1 [mag]: 10.372(0.012)
W2 [mag]: 10.188(0.010)
Effective stellar temperature [K]: 16439.9
