2MASS J19095513-7644205

SUSPECTED MILKY WAY
 
Constellation
Octans
Equatorial coordinates
α = 19 09 54.816
δ = -76 44 19.669
Galactic coordinates
l = 317.8565°
b = -27.4042°

Suspected 2023Ref
Confirmed -
Symbiotic IR type -
Hot component type accreting-onlyRef
Outbursts -

Identifiers

2MASS J19095513-7644205 IRAS - GSC2.4.2 SADZ000057 AAVSO -
SIMBAD 2MASS J19095513-7644205 Pan-STARRS - SAO - VSX 114365
GAIA DR3 6365522582171014912 SkyMapper 190955.08-764420.5 WRAY - GCVS -
2MASS J19095513-7644205 HIP - Hen - BD -
WISE J190955.07-764420.6 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 (°) 287.4795Ref Parallax (mas) 0.166±0.026Ref Reddening E(B-V) (mag) 0.08±0.0Ref, Note
Declination (°) -76.7391Ref Distance (kpc) 5.74Ref, Note, 4.95Ref, Note    
Galactic longitude (°) 317.8565Ref Proper motion in α (mas/yr) 2.41±0.02Ref    
Galactic latitude (°) -27.4042Ref Proper motion in δ (mas/yr) -3.90±0.03Ref    

Observations

X-Ray - IR type - Radio -
X-Ray type - J (mag) 8.41Ref Flickering -
GALEX FUV (mag) 21.46Ref H (mag) 7.47Ref Outbursts -
GALEX NUV (mag) 21.30Ref K (mag) 7.17Ref Outburst type -
IUE NoRef WISE W1 (mag) 6.98Ref Jets -
FUSE NoRef WISE W2 (mag) 6.93Ref Resolved nebula -
U (mag) - WISE W3 (mag) 6.52Ref IPmax (eV) 0Ref
B (mag) 14.80Ref WISE W4 (mag) 6.23Ref [O III] lines NoRef
V (mag) 13.08Ref IRAS 12μm (Jy) - He II lines NoRef
R (mag) 12.92Ref IRAS 25μm (Jy) - [Fe VII] lines NoRef
I (mag) - IRAS 60μm (Jy) - O VI lines NoRef
BP (mag) 13.49Ref IRAS 100μm (Jy) -
G (mag) 11.69Ref AKARI S09 (Jy) 0.11Ref
RP (mag) 10.36Ref AKARI S18 (Jy) -

Orbit

Orbital period (days) - γ velocity (km/h) -63.24±0.37Ref 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 Yes?Ref
Eff. temperature (K) - Radius (R) - Type SR?Ref
IR type - Luminosity (L) - Pulsation period (days) 98.5340373Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

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

Links

SIMBAD   CDS Portal


Notes

Suspected of having a symbiotic nature by Akras (2023). The authors employed a combination of GALEX UV photometry, 2MASS/WISE IR photometry, and the ASAS-SN variables catalog to select the candidates. Their subsequent spectroscopic observations did not reveal any emission lines, leading to the suggestion that this star is an accreting-only symbiotic candidate.


References


Last updated: January 31, 2023