Coordinates
RA: 20h30m30s.841
DEC: +47∘51'50''.645
Position-uncertainty [arcsec]: 2.073 × 10-5
Galactic-longitude [deg]: 85.23
Galactic-latitude [deg]: 5.05
Coordinate-Reference
Binary System
Alternative Name: RX J2030.5+4751
X-ray Type: BE,Gcas
Mean Distance [kpc]: 2.18
Distance Range [kpc]: 1.71 - 3.74
Compact Object
XMM-Newton flux [10-12 erg cm-2 s-1]:1.1 (0.2-12.0 keV)
Optical Counterpart
Gaia DR3 Name: 2083644392294059520
Counterpart: confirmed
Spectral Type: B0.5III-Ve[1]
G [mag]: 9.0253(0.0028)
V [mag]: 9.273(0.019)
J [mag]: 8.058(0.026)
H [mag]: 7.854(0.023)
K [mag]: 7.624(0.027)
W1 [mag]: 7.167(0.014)
W2 [mag]: 6.833(0.008)
Effective stellar temperature [K]: 34910.4
