[RP2006] 254


Equatorial coordinates
α = 85.907355 ± 0.117300 | 05 43 37.765197
δ = -69.336173 ± 0.129800 | -69 20 10.224210
Constellation Dorado
Symbiotic IR Type  
Spectral Type  
Magnitude range (V)  
Outbursts No


[RP2006] 254 GSC TYC WRAY
SIMBAD [RP2006] 254 HIP SAO Hen
BD – IRAS  GAIA DR2 4657628669448472320 ESO
HD 2MASS J05433775-6920102 WISE  AAVSO


Right ascension (°) 85.907355 ± 0.117300 ref Parallax (mas) Reddening E(B-V) (mag) 1.741 ± 0.251ref
Declination (°) -69.336173 ± 0.129800ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 279.685746 ± 0.129800ref Proper motion in α (mas/yr) 2.095 ± 0.228ref    
Galactic latitude (°) -31.212998 ± 0.117300ref Proper motion in δ (mas/yr) 0.371 ± 0.284ref    


U (mag) 17.01ref X-Ray   Flickering  
B (mag) 17.52ref X-Ray type   Outbursts No
V (mag) 17.08ref IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV)  
I (mag)   IRAS flux at 25 μm (Jy)   OVI lines  
G (mag) 17.14ref IRAS flux at 60 μm (Jy)      
J (mag) 16.12ref IRAS flux at 100 μm (Jy)      
H (mag) 16.06ref WISE W1 (mag)      
K (mag) 16.45ref WISE W2 (mag)      
L (mag)   WISE W3 (mag)      
    WISE W4 (mag)      
    Radio flux (mJy)      


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   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)          


SIMBAD     CDS Portal


Reid (2014) reported diffuse and extended Hα nebula associated with the object and classified it as a possible symbiotic star.


Last updated: Feb 5, 2019 @ 10:01 pm