SMP LMC 93

SUSPECTED LMC  

Equatorial coordinates
α =  87.411852 ± 0.476900 | 05 49 38.844538
δ =  -69.166754 | -69 10 00.313637
 
Constellation Dorado
Symbiotic IR Type S
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

SMP LMC 93 GSC TYC WRAY
SIMBAD LHA 120-N 181 HIP SAO Hen
BD – IRAS  GAIA DR2 4657549985621718784 ESO
HD 2MASS J05493876-6909599 WISE J054938.70-691000.0 AAVSO

Position

Right ascension (°) 87.411852 ± 0.476900ref Parallax (mas) Reddening E(B-V) (mag) 0.398 ± 0.047ref
Declination (°) -69.166754 ± 0.582500ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 279.437658 ± 0.582500ref  Proper motion in α (mas/yr)    
Galactic latitude (°) -30.695791± 0.476900ref Proper motion in δ (mas/yr)    

Observations

U (mag) 16.54ref X-Ray   Flickering  
B (mag) 18.89ref X-Ray type   Outbursts No
V (mag) 18.04ref IUE No Type  
R (mag) 15.06ref IRAS flux at 12 μm (Jy)   IPmax (eV)  
I (mag) 18.17ref IRAS flux at 25 μm (Jy)   OVI lines  
G (mag) 18.83ref IRAS flux at 60 μm (Jy)      
J (mag) 17.08ref IRAS flux at 100 μm (Jy)      
H (mag) 16.50ref WISE W1 (mag) 15.13ref    
K (mag) 15.77ref WISE W2 (mag) 14.14ref    
L (mag)   WISE W3 (mag) 10.33ref    
    WISE W4 (mag) 8.16ref    
    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   Mass (M)   Pulsation  
Eff. temperature (K) 3200ref Radius (R)   Type  
IR type Sref 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)          

Links

SIMBAD     CDS Portal


Notes

Suspected to be a symbiotic binary in Iłkiewicz & Mikołajewska (2017) based on the position of the star in the [O III] diagnostic diagrams. The infrared colors place this star near the region occupied by symbiotics.


References

Last updated: Jan 14, 2019 @ 1:47 pm