LMC1

CONFIRMED LMC  

Equatorial coordinates
α =  81.254625 ± 0.041449 | 05 25 01.106406
δ =  -62.480216 ± 0.045194 |-62 28 48.779618
 
Constellation Dorado
Symbiotic IR Type D🡕
Spectral Type C4.3
Magnitude range (V)  
Outbursts No

Identifiers

LMC1 GSC TYC WRAY
SIMBAD NAME LMC Symbiotic Star 1 HIP SAO Hen
BD – IRAS GAIA DR2 4757458655865241984 ESO
HD 2MASS J05250111-6228488 WISE J052501.11-622848.7 AAVSO 000-BLT-633

Position

Right ascension (°) 81.254625 ± 0.041449ref  Parallax (mas) Reddening E(B-V) (mag) 0.049 ± 0.002ref
Declination (°) -62.480216 ± 0.045194ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 271.816454 ± 0.045194ref Proper motion in α (mas/yr) 1.630595 ± 0.089853ref    
Galactic latitude (°) -33.766091 ± 0.041449ref Proper motion in δ (mas/yr) 0.194366 ± 0.087179ref    

Observations

U (mag) 17.32ref X-Ray   Flickering  
B (mag) 18.22ref X-Ray type   Outbursts No
V (mag) 17.36ref IUE Yes Type  
R (mag) 14.90ref IRAS flux at 12 μm (Jy)   IPmax (eV) 114ref
I (mag) 14.10ref IRAS flux at 25 μm (Jy)   OVI lines Yesref
G (mag) 15.88ref IRAS flux at 60 μm (Jy)      
J (mag) 13.55ref IRAS flux at 100 μm (Jy)      
H (mag) 12.01ref WISE W1 (mag) 8.82ref    
K (mag) 10.71ref WISE W2 (mag) 8.24ref    
L (mag) 8.54ref WISE W3 (mag) 7.50ref    
    WISE W4 (mag) 7.37ref    
    Radio      
    Radio flux (mJy)      

Orbit

Orbital period (days) >1500?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 C4.3ref Mass (M)   Pulsation Yesref
Eff. temperature (K) 3100ref Radius (R) 360ref Type SR pulsationsref
IR type D🡕, ref Luminosity (L) 11000ref Pulsation period (days) 171 ± 3ref
Metallicity [Fe/H]       Ephemeris type Min(I)ref
        Ephemeris T(JD) 2455962  ± 1ref

Hot component

Type/Spectra   Mass (M)   Spin period (min)  
Eff. temperature (K) 150000ref
125000ref
Radius (R) 0.12ref Accretion disk  
Lower limit (K)   Luminosity (L) 1300ref
3000ref
   
Upper limit (K)          

Links

SIMBAD     CDS Portal     VSX


Notes

The system shows carbon star spectrum and a great number of emission lines. The orbital period should be >1500d (Angeloni et al., 2014).


References

Last updated: May 2, 2019 @ 11:06 am