2MASS J00411657-7233253


Equatorial coordinates
α =  10.319088 ± 0.027600 | 00 41 16.581105
δ =  -72.557040 ± 0.025300 | -72 33 25.344513
Constellation Tucana
Symbiotic IR Type S
Spectral Type  
Magnitude range (V)  
Outbursts Z And?


2MASS J00411657-7233253 GSC TYC WRAY
SIMBAD 2MASS J00411657-7233253 HIP SAO Hen
BD – IRAS  GAIA DR2 4689129986794765056 ESO
HD 2MASS J00411657-7233253 WISE J004116.57-723325.4 AAVSO


Right ascension (°) 10.319088 ± 0.027600ref Parallax (mas) Reddening E(B-V) (mag) 0.052 ± 0.005ref
Declination (°) -72.557040 ± 0.025300ref Distance (kpc) 62.10 ± 1.90ref    
Galactic longitude (°) 304.000196 ± 0.025300ref Proper motion in α (mas/yr) 0.607000 ± 0.062000ref    
Galactic latitude (°) -44.550126 ± 0.027600ref Proper motion in δ (mas/yr) -1.163000 ± 0.054000ref    


U (mag) 19.01ref X-Ray   Flickering  
B (mag) 16.60ref X-Ray type   Outbursts Yesref
V (mag) 16.80ref IUE No Type Z And?ref
R (mag) 15.16ref IRAS flux at 12 μm (Jy)   IPmax (eV) 24.6ref
I (mag) 14.15ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 15.31ref IRAS flux at 60 μm (Jy)      
J (mag) 12.97ref IRAS flux at 100 μm (Jy)      
H (mag) 12.11ref WISE W1 (mag) 11.70ref    
K (mag) 11.87ref WISE W2 (mag) 11.73ref    
L (mag)   WISE W3 (mag) 11.34ref    
    WISE W4 (mag) 9.41ref    
    Radio flux (mJy)      


Orbital period (days) ∼400?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   Mass (M)   Pulsation Yes?ref
Eff. temperature (K) 3570ref Radius (R) 165ref Type quasi-periodicref
IR type Sref Luminosity (L)   Pulsation period (days) ∼70?ref
Metallicity [Fe/H]       Ephemeris type  
        Ephemeris T(JD)  

Hot component

Type/Spectra WDref Mass (M)   Spin period (min)  
Eff. temperature (K)   Radius (R)   Accretion disk  
Lower limit (K)   Luminosity (L) 750ref    
Upper limit (K) 120000ref        


SIMBAD     CDS Portal


2MASS J00411657-7233253 shows quasi-periodic variability and a marginally detectable variability on timescale of ∼400 d. OVI lines are not detected (Iłkiewicz et al., 2018).


  • Iłkiewicz, K., Mikołajewska, J., Shara, M. M., et al., 2018, arXiv e-prints, arXiv:1811.06696, submitted to ApJ, 2018arXiv181106696I

Last updated: Jan 14, 2019 @ 10:06 am