M33SyS J013417.72+304119.5

CONFIRMED M33  

Equatorial coordinates
α =  23.573830 | 01 34 17.720000
δ =  30.688750 | +30 41 19.500000
 
Constellation Triangulum
Symbiotic IR Type  
Spectral Type M
Magnitude range (V)  
Outbursts No

Identifiers

M33SyS J013417.72+304119.5 GSC TYC WRAY
SIMBAD M33SyS J013417.72+304119.5 HIP SAO Hen
BD – IRAS  GAIA DR2  ESO
HD 2MASS – WISE  AAVSO

Position

Right ascension (°) 23.573830ref  Parallax (mas) Reddening E(B-V) (mag) 0.037 ± 0.001ref
Declination (°) 30.688750ref Distance (kpc) 847.00 ± 60.00ref    
Galactic longitude (°) 133.714140ref Proper motion in α (mas/yr)    
Galactic latitude (°) -31.284120ref Proper motion in δ (mas/yr)    

Observations

U (mag)   X-Ray   Flickering  
B (mag)   X-Ray type   Outbursts No
V (mag) 23.17ref IUE No Type  
R (mag) 21.57ref IRAS flux at 12 μm (Jy)   IPmax (eV) 54.4ref
I (mag) 20.33ref IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag)   IRAS flux at 60 μm (Jy)      
J (mag)   IRAS flux at 100 μm (Jy)      
H (mag)   WISE W1 (mag)      
K (mag)   WISE W2 (mag)      
L (mag)   WISE W3 (mag)      
    WISE W4 (mag)      
    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 Mref 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) 54000ref Luminosity (L)      
Upper limit (K) 116000ref        

Links

SIMBAD     CDS Portal


Notes

The star shows relatively strong lines from the [O II], [N II] and [S II] lines, which might suggest DIG origin (Mikołajewska et al., 2017).


References

  • Mikołajewska, J., Shara, M. M., Caldwell, N., et al., 2017, MNRAS, 465, 699, 2017MNRAS.465.1699M

Last updated: Jan 13, 2019 @ 12:54 pm