CXOM31 J003825.7+401739


Equatorial coordinates
α =  9.607053 ± 0.186900 | 00 38 25.692726 
δ =  40.294083 ± 0.188000 | +40 17 38.698295
Constellation Andromeda
Symbiotic IR Type  
Spectral Type  
Magnitude range (V)  
Outbursts No


CXOM31 J003825.7+401739 GSC TYC WRAY
SIMBAD [KGP2002] s2-10 HIP SAO Hen
BD IRAS  GAIA DR2 380745174299369472 ESO
HD 2MASS J00382569+4017388 WISE  AAVSO 


Right ascension (°) 9.607053 ± 0.186900ref Parallax (mas) Reddening E(B-V) (mag) 0.058 ± 0.005ref
Declination (°) 40.294083 ± 0.188000ref Distance (kpc) 785.00 ± 25.00ref    
Galactic longitude (°) 120.247055 ± 0.188000ref Proper motion in α (mas/yr)    
Galactic latitude (°) -22.509836 ± 0.186900ref Proper motion in δ (mas/yr)    


U (mag)   X-Ray Yesref   Flickering  
B (mag) 21.10ref  X-Ray type   Outbursts No
V (mag) 19.40ref  IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV)  
I (mag)   IRAS flux at 25 μm (Jy)   OVI lines  
G (mag) 18.13ref IRAS flux at 60 μm (Jy)      
J (mag) 15.09ref IRAS flux at 100 μm (Jy)      
H (mag) 14.61ref WISE W1 (mag) 14.14ref    
K (mag) 14.26ref WISE W2 (mag) 14.00ref    
L (mag)   WISE W3 (mag) 12.39ref    
    WISE W4 (mag) 8.87ref    
    Radio flux (mJy)      


Orbital period (days)   γ velocity (km/h)   Size of giant’s orbit (AU)  
Eccentricity   RV of giant (km/h)   Separation (AU)  
Inclination (°)   Inferior conj. of giant (JD)   Mass function  
Ephemeris type       Mass ratio  
Ephemeris T(JD)          

Cool component

Spectral type   Mass (M)   Pulsation  
Eff. temperature (K)   Radius (R)   Type  
IR type   Luminosity (L)   Pulsation period (days)  
Metallicity [Fe/H]       Ephemeris type  
        Ephemeris T(JD)  

Hot component

Type/Spectra   Mass (M)   Spin period (min)  
Eff. temperature (K)   Radius (R)   Accretion disk  
Lower limit (K)   Luminosity (L)      
Upper limit (K)          


SIMBAD     CDS Portal


Identified as an X-ray source in M31. Di Stefano et al. (2004) identified the object as a possible symbiotic system, they also identified an optical counterpart.


  • Di Stefano, R., Kong, A. K. H., Greiner, J., et al., 2004, ApJ, 610, 247, 2004ApJ…610..247D

Last updated: May 12, 2019 @ 7:56 pm