M31SyS J004237.49+403813.2

SUSPECTED M31  

Equatorial coordinates
α =  10.656200 | 00 42 37.488000
δ =  40.637001 | +40 38 13.204000
 
Constellation Andromeda
Symbiotic IR Type  
Spectral Type M
Magnitude range (V)  
Outbursts No

Identifiers

M31SyS J004237.49+403813.2 GSC TYC WRAY
SIMBAD M31SyS J004237.49+403813.2 HIP SAO Hen
BD – IRAS  GAIA DR2  ESO
HD 2MASS  WISE  AAVSO

Position

Right ascension (°) 10.656200ref Parallax (mas) Reddening E(B-V) (mag) 0.080 ± 0.005ref
Declination (°) 40.637001ref Distance (kpc) 785.00 ± 25.00ref    
Galactic longitude (°) 121.126191ref Proper motion in α (mas/yr)    
Galactic latitude (°) -22.203847ref Proper motion in δ (mas/yr)    

Observations

U (mag) 22.52ref X-Ray   Flickering  
B (mag) 22.96ref X-Ray type   Outbursts No
V (mag) 22.35ref IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV) 54.4ref
I (mag) 21.30ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag)   IRAS flux at 60 μm (Jy)      
J (mag)   IRAS flux at 100 μm (Jy)      
H (mag)   WISE W1 (mag)      
K (mag)   WISE W2 (mag)      
L (mag)   WISE W3 (mag)      
    WISE W4 (mag)      
    Radio      
    Radio flux (mJy)      

Orbit

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 Mref 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) 25000ref Luminosity (L)      
Upper limit (K)          

Links

SIMBAD     CDS Portal


Notes

Classified as a suspected symbiotic binary in Mikołajewska et al. (2014).


References

  • Mikołajewska, J., Caldwell, N., Shara, M. M., 2014, MNRAS, 444, 586, 2014MNRAS.444..586M
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Last updated: Jan 12, 2019 @ 3:17 pm