NuSTAR J095838+6909.2
        
      
        
  
    | SUSPECTED
    MILKY WAY 
 
| Constellation Ursa Major
 | Equatorial coordinates α = 09 58 38.112
 δ =  +69 09 13.680
 | Galactic coordinates l = 141.7836°
 b = 41.0735°
 |  
 
| Suspected | 2017Ref |  
| Confirmed | - |  
| Symbiotic IR type | S?Ref |  
| Hot component type | accreting-only?Ref |  
| Outbursts | - |  |  | 
     
    
    
      
      
  Symbiotic Catalogs
  
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | - | 
| Gaposchkin (1957) | - | Kenyon (1986) | - | Akras et al. (2019) | - | 
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | - | 
   
  
  
Position
| Right ascension (°) | 149.6637Ref | Parallax (mas) | 3.406±0.028Ref | Reddening E(B-V) (mag) | 0.06±0.0Ref, Note | 
| Declination (°) | 69.1533Ref | Distance (kpc) | 0.29Ref, Note, 0.29Ref, Note |  |  | 
| Galactic longitude (°) | 141.7836Ref | Proper motion in α (mas/yr) | -18.66±0.03Ref |  |  | 
| Galactic latitude (°) | 41.0735Ref | Proper motion in δ (mas/yr) | -11.00±0.03Ref |  |  | 
 
  
  
Observations
  
     | X-Ray | YesRef | IR type | S?Ref | Radio | - | 
   
     | X-Ray type | δRef | J (mag) | 13.38Ref | Flickering | - | 
   
     | GALEX FUV (mag) | - | H (mag) | 12.67Ref | Outbursts | - | 
   
     | GALEX NUV (mag) | - | K (mag) | 12.51Ref | Outburst type | - | 
   
     | IUE | NoRef | WISE W1 (mag) | 12.38Ref | Jets | - | 
   
     | FUSE | NoRef | WISE W2 (mag) | 12.32Ref | Resolved nebula | - | 
   
     | U (mag) | - | WISE W3 (mag) | 11.38Ref | IPmax (eV) | - | 
   
     | B (mag) | 17.62Ref | WISE W4 (mag) | 8.93Ref | [O III] lines | - | 
   
     | V (mag) | 16.13Ref | IRAS 12μm (Jy) | - | He II lines | - | 
   
     | R (mag) | - | IRAS 25μm (Jy) | - | [Fe VII] lines | - | 
   
     | I (mag) | - | IRAS 60μm (Jy) | - | O VI lines | - | 
   
     | BP (mag) | 16.45Ref | IRAS 100μm (Jy) | - |  |  | 
   
     | G (mag) | 15.51Ref | AKARI S09 (Jy) | - |  |  | 
   
     | RP (mag) | 14.54Ref | AKARI S18 (Jy) | - |  |  | 
 
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 | - | 
| Eclipses | - |  |  | Mass ratio | - | 
| Orbital ephemeris | - |  |  |  |  | 
 
Cool component
| Spectral type | - | Mass (M⊙) | - | Pulsation | - | 
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | - | 
| IR type | S?Ref | Luminosity (L⊙) | - | Pulsation period (days) | - | 
| Metallicity [Fe/H] | - |  |  | Pulsation ephemeris | - | 
 
Hot component
| Type/Spectral type | - | Mass (M⊙) | - | Spin period (min) | - | 
  | Shell-burning/Accreting-only | accreting-only?Ref | Radius (R⊙) | - | Accretion disk | - | 
  | Eff. temperature (K) | - | Luminosity (L⊙) | - |  |  | 
  | Lower limit (K) | - |  |  |  |  | 
| Upper limit (K) | - |  |  |  |  | 
 
Notes
Tomsick et al. (2017) associated the hard X-ray source with an M-type star and suggested that it might be a symbiotic system.
 
References
- Tomsick, J. A., Lansbury, G. B., Rahoui, F. et al., 2017, ApJS, 230, 2, 25, 2017ApJS..230...25T
 
Last updated: August 22, 2021