LIN 521

SUSPECTED SMC  

Equatorial coordinates
α =  19.648781 ± 0.027143 | 01 18 35.705205
δ =  -72.705950 ± 0.021427 | -72 42 21.401282
 
Constellation Tucana
Symbiotic IR Type S🡕
Spectral Type C
Magnitude range (V)  
Outbursts No

Identifiers

LIN 521 GSC TYC WRAY
SIMBAD LIN 521 HIP SAO Hen
BD – IRAS  GAIA DR2 4687286621186701568 ESO
HD 2MASS J01183570-7242213 WISE J011835.70-724221.3 AAVSO 000-BJT-858

Position

Right ascension (°) 19.648781 ± 0.027143ref  Parallax (mas) Reddening E(B-V) (mag) 0.042 ± 0.005ref
Declination (°) -72.705950 ± 0.021427ref Distance (kpc) 62.10 ± 1.90ref    
Galactic longitude (°) 300.118592 ± 0.021427ref Proper motion in α (mas/yr) 0.665988 ± 0.046376ref    
Galactic latitude (°) -44.273657 ± 0.027143ref Proper motion in δ (mas/yr) -1.283034 ± 0.038885ref    

Observations

U (mag)   X-Ray Noref Flickering  
B (mag) 16.50 X-Ray type   Outbursts No
V (mag) 15.97ref IUE Yes Type  
R (mag) 14.90 IRAS flux at 12 μm (Jy)   IPmax (eV) 13.6ref
I (mag) 14.01ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 15.21ref IRAS flux at 60 μm (Jy)      
J (mag) 12.77ref IRAS flux at 100 μm (Jy)      
H (mag) 11.75ref WISE W1 (mag) 10.83ref    
K (mag) 11.34ref WISE W2 (mag) 10.90ref    
L (mag)   WISE W3 (mag) 10.49ref    
    WISE W4 (mag) 9.41ref    
    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 Cref Mass (M)   Pulsation  
Eff. temperature (K) 3479ref Radius (R)   Type  
IR type S🡕, ref 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     VSX


Notes

Classified as a probable symbiotic star in Westerlund et al. (1991). Van Winckel et al. (1993) did not confirm its symbiotic nature and classified the star as carbon star. 


References

Last updated: May 2, 2019 @ 11:04 am