Coordinates

RA: 03^h55^m23^s.076
DEC: +31^∘02'045''.01
Position-uncertainty [arcsec]: 3.618 × 10^-5
Galactic-longitude [deg]: 163.08
Galactic-latitude [deg]: -17.14
Coordinate-Reference

Binary System

Alternative Name: 3U 0352+30
X-ray Type: BE,CL,XP
Mean Distance [kpc]: 0.63
Distance Range [kpc]: 0.58 - 0.7

Compact Object

Orbital Period [d]: 250.3^[1]
Pulse Period [s]: 837.67^[1][2]
CRSF energy [keV]: 29^[1]
XMM-Newton flux [10^-12 erg cm^-2 s^-1]:497.7 - 505.91 (0.2-12.0 keV)
Chandra flux [10^-12 erg cm^-2 s^-1]:0.0 (~0.1-10.0 keV)
Swift/BAT flux [10^-12 erg cm^-2 s^-1]:667.23 (14-195 keV)

Optical Counterpart

Gaia DR3 Name: 168450545792009600
Counterpart: confirmed
Spectral Type: B0Ve^[1]
G [mag]: 6.262(0.006)
V [mag]: 6.720(0.009)
J [mag]: 6.149(0.018)
H [mag]: 6.073(0.024)
K [mag]: 5.920(0.016)
W1 [mag]: 5.14(0.07)
W2 [mag]: 4.39(0.05)
Effective stellar temperature [K]: 41186.5