2MASS J01032236-7204109


Equatorial coordinates
α = 15.843090 ± 0.068900 | 01 03 22.341681
δ =  -72.069692 ± 0.054900| -72 04 10.892458
Constellation Tucana
Symbiotic IR Type S🡕
Spectral Type  
Magnitude range (V)  
Outbursts No


2MASS J01032236-7204109 GSC TYC WRAY
SIMBAD 2MASS J01032236-7204109 HIP SAO Hen
BD – IRAS  GAIA DR2 4690512382142873600 ESO
HD 2MASS J01032236-7204109 WISE J010322.39-720411.0 AAVSO


Right ascension (°) 15.843090 ± 0.068900ref  Parallax (mas) Reddening E(B-V) (mag) 0.505 ± 0.087ref
Declination (°) -72.069692 ± 0.054900ref Distance (kpc) 62.10 ± 1.90ref    
Galactic longitude (°) 301.632700 ± 0.054900ref Proper motion in α (mas/yr) 0.492 ± 0.162ref    
Galactic latitude (°) -45.028400 ± 0.068900ref Proper motion in δ (mas/yr) -1.410 ± 0.107ref    


U (mag) 18.14ref X-Ray   Flickering  
B (mag) 17.75ref X-Ray type   Outbursts No
V (mag) 16.78ref IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV) 35.1ref
I (mag) 15.74ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 16.59ref IRAS flux at 60 μm (Jy)      
J (mag) 14.98ref IRAS flux at 100 μm (Jy)      
H (mag) 14.49ref WISE W1 (mag) 14.23ref    
K (mag) 14.33ref WISE W2 (mag) 14.55ref    
L (mag)   WISE W3 (mag) 12.16ref    
    WISE W4 (mag) 8.21ref    
    Radio flux (mJy)      


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) 3835ref Radius (R)   Type  
IR type S🡕, ref Luminosity (L) 1003ref 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)          


SIMBAD     CDS Portal


Kamath et al. (2014) classified the star as likely symbiotic star as its spectra show a photosphere of a cool star with a red continuum and strong emission lines.


  • 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., 2014, MNRAS, 439, 2211, 2014MNRAS.439.2211K

Last updated: May 2, 2019 @ 10:53 am