M31SyS J004334.79+413447.9

CONFIRMED M31  

Equatorial coordinates
α =  10.894874 ± 0.751300 | 00 43 34.769677
δ =  41.579937 ± 0.561100 | +41 34 47.774896
 
Constellation Andromeda
Symbiotic IR Type S
Spectral Type M
Magnitude range (V)  
Outbursts No

Identifiers

M31SyS J004334.79+413447.9 GSC TYC WRAY
SIMBAD  M31SyS J004334.79+413447.9 HIP SAO Hen
BD – IRAS  GAIA DR2 381295106209354880 ESO
HD 2MASS  WISE  AAVSO

Position

Right ascension (°) 10.894874 ± 0.751300ref  Parallax (mas) Reddening E(B-V) (mag) 0.250 ± 0.015ref
Declination (°) 41.579937 ± 0.561100ref Distance (kpc) 785.00 ± 25.00ref    
Galactic longitude (°) 121.355045 ± 0.561100ref Proper motion in α (mas/yr)    
Galactic latitude (°) -21.267751 ± 0.751300ref Proper motion in δ (mas/yr)    

Observations

U (mag) 20.63ref X-Ray   Flickering  
B (mag) 21.30ref X-Ray type   Outbursts No
V (mag) 20.91ref IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV) 41.0ref
I (mag) 19.56ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 20.39ref 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) ∼260?ref 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 Yes?ref
Eff. temperature (K)   Radius (R)   Type Low-amplitude SR pulsations?ref
IR type Sref Luminosity (L)   Pulsation period (days) ∼83?ref
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) 41000ref Luminosity (L)      
Upper limit (K)          

Links

SIMBAD     CDS Portal


Notes

There is a red variable, [PAC] 46291, with P ∼260 d, which couldbe the same object (Mikołajewska et al., 2014).


References

Last updated: Jan 12, 2019 @ 3:54 pm