VPHASDR2J175648.7-285837.0

SUSPECTED MILKY WAY
 
Constellation
Sagittarius		 Equatorial coordinates
α = 17 56 48.677
δ = -28 58 37.146		 Galactic coordinates
l = 1.2162°
b = -2.1251°

Suspected 2019Ref
Confirmed -
Symbiotic IR type S?Ref
Hot component type -
Outbursts -

Identifiers

VPHASDR2J175648.7-285837.0 IRAS - GSC2.4.2 S8DG570008 AAVSO -
SIMBAD OGLE BLG-LPV-134361 Pan-STARRS 73222692027947937 SAO - VSX 343285
GAIA DR3 4062549401461227264 SkyMapper - WRAY - GCVS -
2MASS J17564881-2858370 HIP - Hen - BD -
WISE J175648.72-285838.4 TYC - ESO - HD -

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 (°) 269.2028Ref Parallax (mas) -0.035±0.192Ref Reddening E(B-V) (mag) 0.98±0.09Ref, Note
Declination (°) -28.9770Ref Distance (kpc) 6.98Ref, Note
-, Note		    
Galactic longitude (°) 1.2162Ref Proper motion in α (mas/yr) 0.02±0.17Ref    
Galactic latitude (°) -2.1251Ref Proper motion in δ (mas/yr) -8.33±0.12Ref    

Observations

X-Ray - IR type S?Ref Radio -
X-Ray type - J (mag) - Flickering -
GALEX FUV (mag) - H (mag) - Outbursts -
GALEX NUV (mag) - K (mag) - Outburst type -
IUE NoRef WISE W1 (mag) 7.91Ref Jets -
FUSE NoRef WISE W2 (mag) 7.85Ref Resolved nebula -
U (mag) - WISE W3 (mag) 7.56Ref IPmax (eV) -
B (mag) - WISE W4 (mag) 7.09Ref [O III] lines -
V (mag) 19.25Ref IRAS 12μm (Jy) - He II lines -
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines -
I (mag) 13.79Ref IRAS 60μm (Jy) - O VI lines -
BP (mag) - IRAS 100μm (Jy) -
G (mag) 17.97Ref AKARI S09 (Jy) -
RP (mag) - 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 YesRef
Eff. temperature (K) - Radius (R⊙) - Type SRRef
IR type S?Ref Luminosity (L⊙) - Pulsation period (days) 136.76Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type - Mass (M⊙) - Spin period (min) -
Shell-burning/Accreting-only - Radius (R⊙) - Accretion disk -
Eff. temperature (K) - Luminosity (L⊙) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal

Notes

Classified as a possible symbiotic star based on infrared data by Akras et al. (2019), this object has also been identified as a long-period variable by Soszyński et al. (2013).

References

  • Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A
  • Soszyński, I., Udalski, A., Szymański, M. K. et al., 2013, AcA, 63, 1, 21, 2013AcA....63...21S


Last updated: May 3, 2022