LMC S147
        
      
        
  
    
    
    CONFIRMED
    LMC  
    
Constellation 
Mensa | 
Equatorial coordinates 
α = 04 54 03.472 
δ =  -70 59 32.150 | 
Galactic coordinates 
l = 282.6607°  
b = -34.9719°  | 
 
  
| Suspected | 
1988Ref | 
 
| Confirmed | 
1988Ref | 
 
| Symbiotic IR type | 
SRef | 
 
| Hot component type | 
shell-burningRef | 
 
| Outbursts | 
- | 
 
 
   | 
    
      
      
      
     | 
  
     
    
    
      
      
  Symbiotic Catalogs
  
| Bidelman (1954) | 
- | 
Allen (1984) | 
- | 
Belzcyński et al. (2001) | 
LMC S147 (Conf.) | 
| Gaposchkin (1957) | 
- | 
Kenyon (1986) | 
- | 
Akras et al. (2019) | 
LMC S147 (Conf.) | 
| Boyarchuk (1969) | 
- | 
Vaidis (1988, 1991) | 
LMC S147 (Conf.) | 
   
  
  
Position
| Right ascension (°) | 
73.5145Ref | 
Parallax (mas) | 
0.026±0.021Ref | 
Reddening E(B-V) (mag) | 
0.17±0.02Ref, Note | 
| Declination (°) | 
-70.9923Ref | 
Distance (kpc) | 
49.97±0.19Ref 13.18Ref, Note, 11.47Ref, Note | 
  | 
  | 
| Galactic longitude (°) | 
282.6607Ref | 
Proper motion in α (mas/yr) | 
1.88±0.02Ref | 
  | 
  | 
| Galactic latitude (°) | 
-34.9719Ref | 
Proper motion in δ (mas/yr) | 
-0.44±0.03Ref | 
  | 
  | 
 
  
  
Observations
  
     | X-Ray | 
     - | 
     IR type | 
     SRef | 
     Radio | 
     - | 
   
   
     | X-Ray type | 
     - | 
     J (mag) | 
     12.87Ref | 
     Flickering | 
     - | 
   
   
     | GALEX FUV (mag) | 
     - | 
     H (mag) | 
     12.04Ref | 
     Outbursts | 
     - | 
   
   
     | GALEX NUV (mag) | 
     - | 
     K (mag) | 
     11.79Ref | 
     Outburst type | 
     - | 
   
   
     | IUE | 
     NoRef | 
     WISE W1 (mag) | 
     11.66Ref | 
     Jets | 
     - | 
   
   
     | FUSE | 
     NoRef | 
     WISE W2 (mag) | 
     11.64Ref | 
     Resolved nebula | 
     - | 
   
   
     | U (mag) | 
     - | 
     WISE W3 (mag) | 
     11.02Ref | 
     IPmax (eV) | 
     114Ref | 
   
   
     | B (mag) | 
     12.80Ref | 
     WISE W4 (mag) | 
     9.50Ref | 
     [O III] lines | 
     NoRef | 
   
   
     | V (mag) | 
     15.47Ref | 
     IRAS 12μm (Jy) | 
     - | 
     He II lines | 
     YesRef | 
   
   
     | R (mag) | 
     15.57Ref | 
     IRAS 25μm (Jy) | 
     - | 
     [Fe VII] lines | 
     NoRef | 
   
   
     | I (mag) | 
     13.90Ref | 
     IRAS 60μm (Jy) | 
     - | 
     O VI lines | 
     YesRef | 
   
   
     | BP (mag) | 
     15.71Ref | 
     IRAS 100μm (Jy) | 
     - | 
      | 
      | 
   
   
     | G (mag) | 
     14.94Ref | 
     AKARI S09 (Jy) | 
     - | 
      | 
      | 
   
   
     | RP (mag) | 
     14.01Ref | 
     AKARI S18 (Jy) | 
     - | 
      | 
      | 
   
 
Orbit
| Orbital period (days) | 
- | 
γ velocity (km/h) | 
259.62±6.22Ref | 
Size of giant’s orbit (AU) | 
- | 
| Eccentricity | 
- | 
RV of giant (km/h) | 
- | 
Separation (AU) | 
- | 
| Inclination (°) | 
- | 
Inferior conj. of giant (JD) | 
- | 
Mass function | 
- | 
| Eclipses | 
- | 
  | 
  | 
Mass ratio | 
- | 
| Orbital ephemeris | 
- | 
  | 
  | 
  | 
  | 
 
Cool component
| Spectral type | 
M1Ref, K5Ref | 
Mass (M⊙) | 
- | 
Pulsation | 
YesRef | 
| Eff. temperature (K) | 
3750Ref | 
Radius (R⊙) | 
110Ref | 
Type | 
OGLE Small Amplitude Red GiantRef | 
| IR type | 
SRef | 
Luminosity (L⊙) | 
2300Ref | 
Pulsation period (days) | 
63±3Ref | 
| Metallicity [Fe/H] | 
- | 
  | 
  | 
Pulsation ephemeris | 
Min(I) = 2455553±1 + 63±3 x ERef | 
 
Hot component
| Type/Spectral type | 
- | 
Mass (M⊙) | 
- | 
Spin period (min) | 
- | 
  | Shell-burning/Accreting-only | 
  shell-burningRef | 
Radius (R⊙) | 
0.12Ref | 
Accretion disk | 
- | 
  | Eff. temperature (K) | 
  <135000Ref, 170000Ref | 
Luminosity (L⊙) | 
3000±1000Ref,  900Ref | 
  | 
  | 
  | Lower limit (K) | 
  - | 
  | 
  | 
  | 
  | 
| Upper limit (K) | 
- | 
  | 
  | 
  | 
  | 
 
Notes
The cool component is an oxygen-rich red giant star of K5-M1 spectral type.
 
References
- Angeloni, R., Ferreira Lopes, C. E., Masetti, N. et al., 2014, MNRAS, 438, 1, 35, 2014MNRAS.438...35A
 
- Morgan, D. H., Allen, D. A., 1988, MNRAS, 234, 1005, 1988MNRAS.234.1005M
 
- Morgan, D. H., 1992, MNRAS, 258, 639, 1992MNRAS.258..639M
 
- Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
 
 
Last updated: May 2, 2019