PPA J1808-2346

POSSIBLE MILKY WAY
 
Constellation
Sagittarius
Equatorial coordinates
α = 18 08 28.388
δ = -23 46 47.435
Galactic coordinates
l = 7.0284°
b = -1.8381°

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

Identifiers

PPA J1808-2346 IRAS - GSC2.4.2 S9S2032981 AAVSO -
SIMBAD Gaia DR3 4066475624310129664 Pan-STARRS 79462721183374536 SAO - VSX -
GAIA DR3 4066475624310129664 SkyMapper 180828.38-234647.3 WRAY - GCVS -
2MASS J18082839-2346472 HIP - Hen - BD -
WISE J180828.39-234647.4 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 (°) 272.1183Ref Parallax (mas) 0.097±0.067Ref Reddening E(B-V) (mag) 2.98±0.17Ref, Note
Declination (°) -23.7798Ref Distance (kpc) 5.80Ref, Note, 5.80Ref, Note    
Galactic longitude (°) 7.0284Ref Proper motion in α (mas/yr) -7.09±0.10Ref    
Galactic latitude (°) -1.8381Ref Proper motion in δ (mas/yr) -9.39±0.07Ref    

Observations

X-Ray - IR type S?Ref Radio -
X-Ray type - J (mag) 10.26Ref Flickering -
GALEX FUV (mag) - H (mag) 8.87Ref Outbursts -
GALEX NUV (mag) - K (mag) 8.35Ref Outburst type -
IUE NoRef WISE W1 (mag) 7.92Ref Jets -
FUSE NoRef WISE W2 (mag) 7.84Ref Resolved nebula -
U (mag) - WISE W3 (mag) 7.55Ref IPmax (eV) 35.1Ref
B (mag) - WISE W4 (mag) 7.17Ref [O III] lines YesRef
V (mag) - IRAS 12μm (Jy) - He II lines NoRef
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines NoRef
I (mag) - IRAS 60μm (Jy) - O VI lines NoRef
BP (mag) 18.30Ref IRAS 100μm (Jy) -
G (mag) 15.00Ref AKARI S09 (Jy) -
RP (mag) 13.47Ref AKARI S18 (Jy) -

Orbit

Orbital period (days) - γ velocity (km/h) 73.36±4.84Ref 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

Symbiotic star candidate in HASH Database of PNe (Parker et al., 2016). Suggested based on infrared colors. The spectrum displays a red continuum, Balmer lines in emission, along with [N II] and [S II] lines, as well as faint He I and [O III]. It appears faint in WISE observations.


References

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


Last updated: March 18, 2022