[RP2006] 295

SUSPECTED LMC  

Equatorial coordinates
α = 87.093006 ± 0.108200| 05 48 22.321538
δ = -67.981479 ± 0.117100 | -67 58 53.322692
 
Constellation Dorado
Symbiotic IR Type D🡕
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

[RP2006] 295 GSC TYC WRAY
SIMBAD 2MASS J05482227-6758532 HIP SAO Hen
BD – IRAS  GAIA DR2 4659114208415382656 ESO
HD 2MASS J05482227-6758532 WISE J054822.30-675853.2 AAVSO

Position

Right ascension (°) 87.093006 ± 0.108200 ref Parallax (mas) Reddening E(B-V) (mag) 0.128 ± 0.025ref
Declination (°) -67.981479 ± 0.117100ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 278.069720 ± 0.117100ref Proper motion in α (mas/yr) 1.454 ± 0.193ref    
Galactic latitude (°) -30.889780 ± 0.108200ref Proper motion in δ (mas/yr) -0.144 ± 0.222ref    

Observations

U (mag) 18.26ref X-Ray   Flickering  
B (mag) 18.89ref X-Ray type   Outbursts No
V (mag) 18.17ref IUE No Type  
R (mag) 17.04ref IRAS flux at 12 μm (Jy)   IPmax (eV)  
I (mag) 16.80ref IRAS flux at 25 μm (Jy)   OVI lines  
G (mag) 17.91ref IRAS flux at 60 μm (Jy)      
J (mag) 14.57ref IRAS flux at 100 μm (Jy)      
H (mag) 13.09ref WISE W1 (mag) 10.77ref    
K (mag) 11.73ref WISE W2 (mag) 9.71ref    
L (mag)   WISE W3 (mag) 7.38ref    
    WISE W4 (mag) 5.88ref    
    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)   Radius (R)   Type  
IR type D🡕, 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


Notes

Reid (2014) classified the star as a likely symbiotic star and noted compact Hα, low [O III], and no He II 4686.


References

Last updated: May 2, 2019 @ 11:18 am