SUSPECTED
MILKY WAY
|
| PPA J1808-2355 | IRAS - | GSC2.4.2 S9SD037742 | AAVSO - |
| SIMBAD - | Pan-STARRS 79282720770926132 | SAO - | VSX - |
| GAIA DR3 4066469336476655232 | SkyMapper 180818.49-235542.6 | WRAY - | GCVS - |
| 2MASS J18081849-2355426 | HIP - | Hen - | BD - |
| WISE J180818.48-235542.6 | TYC - | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | - |
| Gaposchkin (1957) | - | Kenyon (1986) | - | Akras et al. (2019) | - |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | - |
| Right ascension (°) | 272.0771Ref | Parallax (mas) | 0.704±0.089Ref | Reddening E(B-V) (mag) | 3.47±0.29Ref, Note |
| Declination (°) | -23.9285Ref | Distance (kpc) | 1.44Ref, Note, 1.39Ref, Note | ||
| Galactic longitude (°) | 6.8800Ref | Proper motion in α (mas/yr) | 2.06±0.10Ref | ||
| Galactic latitude (°) | -1.8772Ref | Proper motion in δ (mas/yr) | -1.06±0.07Ref |
| X-Ray | - | IR type | D'?Ref | Radio | - |
| X-Ray type | - | J (mag) | 13.32Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 11.66Ref | Outbursts | - |
| GALEX NUV (mag) | - | K (mag) | 10.39Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 9.10Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 8.48Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 7.00Ref | IPmax (eV) | 35.1Ref |
| B (mag) | - | WISE W4 (mag) | 4.69Ref | [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) | 18.54Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 17.13Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 15.87Ref | AKARI S18 (Jy) | - |
| 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 | - |
| Spectral type | - | Mass (M⊙) | - | Pulsation | - |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | - |
| IR type | D'?Ref | Luminosity (L⊙) | - | Pulsation period (days) | - |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| 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) | - |
This object is listed as a symbiotic star candidate in the HASH Database of PNe (Parker et al., 2016), based on its infrared colors. The spectrum exhibits a faint red continuum, emission lines of Balmer series, along with [N II] and [S II] lines, as well as faint He I and [O III]. The object appears faint in the WISE observations.