2MASS J05450015-6918192

SUSPECTED LMC  

Equatorial coordinates
α = 86.250648 ± 0.125400 | 05 45 00.155571
δ = -69.305309 ± 0.133300 | -69 18 19.110956
 
Constellation Dorado
Symbiotic IR Type D’🡕
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

2MASS J05450015-6918192 GSC TYC WRAY
SIMBAD 2MASS J05450015-6918192 HIP SAO Hen
BD – IRAS  GAIA DR2 4657618086646710784 ESO
HD 2MASS J05450015-6918192 WISE J054500.15-691819.1 AAVSO

Position

Right ascension (°) 86.250648 ± 0.125400ref Parallax (mas) Reddening E(B-V) (mag) 1.364 ± 0.331ref
Declination (°) -69.305309 ± 0.133300ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 279.636697 ± 0.133300ref Proper motion in α (mas/yr) 2.145 ± 0.251ref    
Galactic latitude (°) -31.095154 ± 0.125400ref Proper motion in δ (mas/yr) 0.904 ± 0.289ref    

Observations

U (mag) 18.35ref X-Ray   Flickering  
B (mag) 19.04ref X-Ray type   Outbursts No
V (mag) 18.73ref IUE No Type  
R (mag) 17.97ref IRAS flux at 12 μm (Jy)   IPmax (eV) 35.1ref
I (mag) 18.00ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 18.37ref IRAS flux at 60 μm (Jy)      
J (mag) 17.39ref IRAS flux at 100 μm (Jy)      
H (mag) 15.72ref WISE W1 (mag) 11.18ref    
K (mag) 13.60ref WISE W2 (mag) 9.68ref    
L (mag)   WISE W3 (mag) 7.08ref    
    WISE W4 (mag) 5.62ref    
    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)   Pulsation  
Eff. temperature (K) 3737ref Radius (R)   Type  
IR type D’🡕, ref Luminosity (L) 2389ref 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


Notes

Suspected in Reid (2014) and Kamath et al. (2015) based on its spectra.


References

Last updated: May 2, 2019 @ 10:58 am