[RP2006] 264

SUSPECTED LMC  

Equatorial coordinates
α =  85.876538 ± 2.193235 | 05 43 30.344000
δ =  -69.412938 ± 2.713948 | -69 24 46.670000
 
Constellation Dorado
Symbiotic IR Type D’🡕
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

[RP2006] 264 GSC TYC WRAY
SIMBAD [RP2006] 264 HIP SAO Hen
BD – IRAS  GAIA DR2 4657622381614885376 ESO
HD 2MASS J05433034-6924466 WISE J054330.33-692446.5 AAVSO

Position

Right ascension (°) 85.876538 ± 2.193235ref  Parallax (mas) Reddening E(B-V) (mag) 1.341 ± 0.430ref
Declination (°) -69.412938 ± 2.713948ref  Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 279.776345 ± 2.713948ref  Proper motion in α (mas/yr)    
Galactic latitude (°) -31.216436 ± 2.193235ref  Proper motion in δ (mas/yr)    

Observations

U (mag) 18.72ref X-Ray   Flickering  
B (mag) 19.12ref X-Ray type   Outbursts No
V (mag) 18.15ref IUE No Type  
R (mag) 17.79ref IRAS flux at 12 μm (Jy)   IPmax (eV) 35.1ref
I (mag) 18.90ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 19.76ref IRAS flux at 60 μm (Jy)      
J (mag) 16.30ref IRAS flux at 100 μm (Jy)      
H (mag) 14.78ref WISE W1 (mag) 10.13ref    
K (mag) 12.88ref WISE W2 (mag) 8.69ref    
L (mag)   WISE W3 (mag) 5.15ref    
    WISE W4 (mag) 2.63ref    
    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) 3754ref 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

An elliptical Hα nebula is observed. The very red colour and very high MIR luminosity points to an obscured RGB or AGB star with significant variability in the OGLE-III I- band lightcurve. The combination of nebula and obscured star make [RP2006] 264 an excellent symbiotic star candidate (Miszalski et al., 2011). Also suspected in Reid (2014).


References

Last updated: May 2, 2019 @ 11:16 am