PPA J1811-2248

SUSPECTED MILKY WAY
 
Constellation
Sagittarius
Equatorial coordinates
α = 18 11 29.309
δ = -22 48 51.963
Galactic coordinates
l = 8.2087°
b = -1.9789°

Suspected 2004Ref
Confirmed -
Symbiotic IR type S?Ref
Hot component type shell-burning?Ref
Outbursts -

Identifiers

PPA J1811-2248 IRAS 18084-2249 GSC2.4.2 SA69084731 AAVSO -
SIMBAD IRAS 18084-2249 Pan-STARRS 80622728720562941 SAO - VSX -
GAIA DR3 4066639863878982016 SkyMapper - WRAY - GCVS -
2MASS J18112931-2248518 HIP - Hen - BD -
WISE J181129.31-224851.9 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 (°) 272.8721Ref Parallax (mas) 0.349±0.100Ref Reddening E(B-V) (mag) 2.48±0.05Ref, Note
Declination (°) -22.8144Ref Distance (kpc) 2.45Ref, Note, 2.92Ref, Note    
Galactic longitude (°) 8.2087Ref Proper motion in α (mas/yr) -3.74±0.12Ref    
Galactic latitude (°) -1.9789Ref Proper motion in δ (mas/yr) -6.89±0.09Ref    

Observations

X-Ray NoRef IR type S?Ref Radio -
X-Ray type - J (mag) 8.12Ref Flickering -
GALEX FUV (mag) - H (mag) 6.80Ref Outbursts -
GALEX NUV (mag) - K (mag) 6.08Ref Outburst type -
IUE NoRef WISE W1 (mag) 6.09Ref Jets -
FUSE NoRef WISE W2 (mag) 5.58Ref Resolved nebula -
U (mag) - WISE W3 (mag) 4.14Ref IPmax (eV) 14.5Ref
B (mag) - WISE W4 (mag) 2.99Ref [O III] lines NoRef
V (mag) - IRAS 12μm (Jy) 1.48Ref He II lines NoRef
R (mag) - IRAS 25μm (Jy) 1.26Ref [Fe VII] lines NoRef
I (mag) - IRAS 60μm (Jy) 8.82Ref O VI lines NoRef
BP (mag) 19.69Ref IRAS 100μm (Jy) 84.60Ref
G (mag) 15.29Ref AKARI S09 (Jy) 0.96Ref
RP (mag) 13.62Ref AKARI S18 (Jy) 0.65Ref

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 shell-burning?Ref Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

Classified as a probable symbiotic star in the HASH Database of PNe (Parker et al., 2016), based on the red continuum and emission lines, including Balmer lines of hydrogen and [N II].


References

  • Parker, Q. A., Bojičić, I. S., Frew, D. J., 2016, JPhCS, 728, 3, 032008, 2016JPhCS.728c2008P


Last updated: March 19, 2022