Coordinates

RA: 21^h31^m026^s.21
DEC: +47^∘17'24''.444
Position-uncertainty [arcsec]: 8.956 × 10^-5
Galactic-longitude [deg]: 91.58
Galactic-latitude [deg]: -3.04
Coordinate-Reference

Binary System

Alternative Name: V1727 Cyg
X-ray Type: XB, XT, EB, DC
Mean Distance [kpc]: 1.12^[1]
Distance Range [kpc]: 1.08 - 1.17^[1]
Hydrogen Column density [10²² cm⁻²]: 0.17
^[1]
G-band Absorption [mag]: 0.6
^[1]

Compact Object

Orbital Period [d]: 0.21833333333333335^[1]


soft energy band: 0.2-12.0 keV
soft-band flux [10^-12 erg cm^-2 s^-1]:0.08 - 0.12
soft X-ray variability: 1.5

Optical Counterpart

Gaia DR3 Name: 1978241050130301312

Spectral Type: F7/5^[1]
G [mag]: 17.5802(0.0029)
^[1]
V [mag]: 16.399999618530273
^[1]
J [mag]: 15.83(0.08)
^[1]
H [mag]: 15.45(0.14)
^[1]
K [mag]: 14.873000(0)
^[1]
W1 [mag]: 15.058(0.026)
^[1]
W2 [mag]: 15.36(0.06)
^[1]