Coordinates

RA: 01^h47^m000^s.21
DEC: +61^∘21'23''.662
Position-uncertainty [arcsec]: 1.796 × 10^-5
Galactic-longitude [deg]: 129.54
Galactic-latitude [deg]: -0.8
Coordinate-Reference

Binary System

Alternative Name: LS I +61 235
X-ray Type: BE
Mean Distance [kpc]: 2.75
Distance Range [kpc]: 2.6 - 2.92
Hydrogen Column density [10²¹ cm⁻²]: 3.91

Compact Object

Orbital Period [d]: 330.0^[1]
Pulse Period [s]: 1407.4^[1]

XMM-Newton flux [10^-12 erg cm^-2 s^-1]:25.44 (0.2-12.0 keV)
Swift/XRT flux [10^-12 erg cm^-2 s^-1]:105.5 (0.3-10.0 keV)

Optical Counterpart

Gaia DR3 Name: 511220031584305536
Counterpart: confirmed
Spectral Type: B1III-Ve^[1]
G [mag]: 11.2154(0.0031)
V [mag]: 11.366
J [mag]: 9.899(0.027)
H [mag]: 9.70(0.04)
K [mag]: 9.486(0.020)
W1 [mag]: 9.155(0.014)
W2 [mag]: 8.986(0.009)