LMC S147

CONFIRMED LMC  

Equatorial coordinates
α =  73.514465 ± 0.021341 | 04 54 03.466107 
δ =  -70.992264 ± 0.026396 | -70 59 32.142300
 
Constellation Mensa
Symbiotic IR Type S🡕
Spectral Type M1-K5
Magnitude range (V)  
Outbursts No

Identifiers

LMC S147 GSC TYC WRAY
SIMBAD LHA 120-S 147 HIP SAO Hen
BD – IRAS  GAIA DR2 4654689399973785088 ESO
HD 2MASS J04540343-7059321 WISE J045403.46-705932.1 AAVSO 000-BLT-631

Position

Right ascension (°) 73.514465 ± 0.021341ref  Parallax (mas) Reddening E(B-V) (mag) 0.167 ± 0.019ref
Declination (°) -70.992264 ± 0.026396ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 282.660739 ± 0.026396ref Proper motion in α (mas/yr) 1.762724 ± 0.039189ref    
Galactic latitude (°) -34.971911 ± 0.021341ref  Proper motion in δ (mas/yr) -0.485344 ± 0.055046ref    

Observations

U (mag)   X-Ray   Flickering  
B (mag) 12.80ref X-Ray type   Outbursts No
V (mag) 15.47ref IUE Yes Type  
R (mag) 15.57ref IRAS flux at 12 μm (Jy)   IPmax (eV) 114.0ref
I (mag) 13.90ref IRAS flux at 25 μm (Jy)   OVI lines Yesref
G (mag) 14.92ref IRAS flux at 60 μm (Jy)      
J (mag) 12.87ref IRAS flux at 100 μm (Jy)      
H (mag) 12.04ref WISE W1 (mag) 11.66ref    
K (mag) 11.79ref WISE W2 (mag) 11.64ref    
L (mag)   WISE W3 (mag) 11.02ref    
    WISE W4 (mag) 9.50ref    
    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 M1-K5ref, ref Mass (M)   Pulsation Yesref
Eff. temperature (K) 3750ref Radius (R) 110ref Type OGLE Small Amplitude Red Giantref
IR type S🡕, ref Luminosity (L) 2300ref Pulsation period (days) 63 ± 3ref
Metallicity [Fe/H]       Ephemeris type Min(I)ref
        Ephemeris T(JD) 2455553 ± 1ref

Hot component

Type/Spectra   Mass (M)   Spin period (min)  
Eff. temperature (K) 170000ref
<135000ref
Radius (R) <0.12ref Accretion disk  
Lower limit (K)   Luminosity (L) 900ref
3000 ± 1000ref
   
Upper limit (K)          

Links

SIMBAD     CDS Portal     VSX


Notes

The cool component is an oxygen-rich red giant star of K5-M1 spectral type.


References

Last updated: May 2, 2019 @ 11:10 am