2MASS J05311676-6901041

SUSPECTED LMC  

Equatorial coordinates
α =  82.819808 ± 0.067100 | 05 31 16.754050
δ =  -69.017787 ± 0.066200 | -69 01 04.034148
 
Constellation Dorado
Symbiotic IR Type S+IR🡕
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

2MASS J05311676-6901041 GSC TYC WRAY
SIMBAD 2MASS J05311676-6901041 HIP SAO Hen
BD – IRAS  GAIA DR2 4658437360224633472 ESO
HD 2MASS J05311676-6901041 WISE J053116.75-690104.0 AAVSO

Position

Right ascension (°) 82.819808 ± 0.067100ref Parallax (mas) Reddening E(B-V) (mag) 0.671 ± 0.091ref
Declination (°) -69.017787 ± 0.066200ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 279.468707 ± 0.066200ref Proper motion in α (mas/yr) 1.275 ± 0.127ref    
Galactic latitude (°) -32.340679 ± 0.067100ref Proper motion in δ (mas/yr) 0.271 ± 0.154ref    

Observations

U (mag) 20.15ref X-Ray   Flickering  
B (mag) 18.38ref X-Ray type   Outbursts No
V (mag) 17.61ref IUE No Type  
R (mag) 16.45ref IRAS flux at 12 μm (Jy)   IPmax (eV) 35.1ref
I (mag) 13.94ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 15.80ref IRAS flux at 60 μm (Jy)      
J (mag) 12.37ref IRAS flux at 100 μm (Jy)      
H (mag) 11.37ref WISE W1 (mag) 10.87ref    
K (mag) 10.98ref WISE W2 (mag) 10.80ref    
L (mag)   WISE W3 (mag) 8.99ref    
    WISE W4 (mag) 7.19ref    
    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) 0.74ref Pulsation  
Eff. temperature (K) 5843 ± 250ref
3589ref
Radius (R)   Type  
IR type S+IR🡕, ref Luminosity (L) 5369ref Pulsation period (days)  
Metallicity [Fe/H] -1.9ref     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 in Kamath et al. (2015) based on its spectra.


References

  • Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L., et al., 2019, ApJS, 240, 21, 2019ApJS..240…21A
  • Kamath, D., Wood, P. R., Van Winckel, H., 2015, MNRAS, 454, 1468, 2015MNRAS.454.1468K

Last updated: May 2, 2019 @ 10:55 am