Coordinates

RA: 20^h32^m25^s.781
DEC: +40^∘57'27''.922
Position-uncertainty [arcsec]: 8.485 × 10^-2
Galactic-longitude [deg]: 79.85
Galactic-latitude [deg]: 0.7
Coordinate-Reference

Binary System

Alternative Name: WR 145a
X-ray Type: BH,MQ,RS
Mean Distance [kpc]: 7.4^[1]
Distance Range [kpc]: 6.3 - 8.5^[1]

Compact Object

Mean Mass[M_☉]: 7.2^[1]

Orbital Period [d]: 0.2^[1]


XMM-Newton flux [10^-12 erg cm^-2 s^-1]:1098.57 - 1294.73 (0.2-12.0 keV)
Chandra flux [10^-12 erg cm^-2 s^-1]:0.0 (~0.1-10.0 keV)
Swift/XRT flux [10^-12 erg cm^-2 s^-1]:10070.0 (0.3-10.0 keV)
Swift/BAT flux [10^-12 erg cm^-2 s^-1]:2467.88 (14-195 keV)

Optical Counterpart

Counterpart: confirmed
Spectral Type: WN 4-6^[1]
J [mag]: 15.31(0.06)
H [mag]: 13.19(0.06)
K [mag]: 11.921(0.031)
W1 [mag]: 10.747(0.017)
W2 [mag]: 10.019(0.012)