VPHASDR2J180912.0-253053.3

SUSPECTED MILKY WAY
 
Constellation
Sagittarius
Equatorial coordinates
α = 18 09 11.963
δ = -25 30 53.320
Galactic coordinates
l = 5.5882°
b = -2.8213°

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

Identifiers

VPHASDR2J180912.0-253053.3 IRAS - GSC2.4.2 S9SC012508 AAVSO -
SIMBAD - Pan-STARRS 77382722998512555 SAO - VSX -
GAIA DR3 4064902768596610048 SkyMapper 180911.96-253053.2 WRAY - GCVS -
2MASS J18091196-2530533 HIP - Hen - BD -
WISE J180911.96-253053.2 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 (°) 272.2998Ref Parallax (mas) 0.121±0.035Ref Reddening E(B-V) (mag) 1.37±0.05Ref, Note
Declination (°) -25.5148Ref Distance (kpc) 5.50Ref, Note, 5.93Ref, Note    
Galactic longitude (°) 5.5882Ref Proper motion in α (mas/yr) -3.37±0.04Ref    
Galactic latitude (°) -2.8213Ref Proper motion in δ (mas/yr) -3.71±0.03Ref    

Observations

X-Ray - IR type S?Ref Radio -
X-Ray type - J (mag) 10.72Ref Flickering -
GALEX FUV (mag) - H (mag) 9.67Ref Outbursts -
GALEX NUV (mag) - K (mag) 9.32Ref Outburst type -
IUE NoRef WISE W1 (mag) 9.00Ref Jets -
FUSE NoRef WISE W2 (mag) 9.24Ref Resolved nebula -
U (mag) - WISE W3 (mag) 9.19Ref IPmax (eV) -
B (mag) - WISE W4 (mag) 8.59Ref [O III] lines -
V (mag) - IRAS 12μm (Jy) - He II lines -
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines -
I (mag) - IRAS 60μm (Jy) - O VI lines -
BP (mag) 16.56Ref IRAS 100μm (Jy) -
G (mag) 14.43Ref AKARI S09 (Jy) -
RP (mag) 13.09Ref 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 - Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

CDS Portal


Notes

Classified as a possible symbiotic star based on infrared data by Akras et al. (2019).


References

  • Akras, S., Leal-Ferreira, M. L., Guzman-Ramirez, L. et al., 2019, MNRAS, 483, 4, 5077, 2019MNRAS.483.5077A


Last updated: May 3, 2022