SUSPECTED
MILKY WAY
|
| Sab 53 | IRAS 19021+0209 | GSC2.4.2 N1O7015382 | AAVSO - |
| SIMBAD IRAS 19021+0209 | Pan-STARRS 110682861610028504 | SAO - | VSX 2223978 |
| GAIA DR3 4268458796543223424 | SkyMapper - | WRAY - | GCVS - |
| 2MASS J19043864+0214242 | HIP - | Hen - | BD - |
| WISE J190438.64+021424.2 | 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 (°) | 286.1610Ref | Parallax (mas) | 0.068±0.035Ref | Reddening E(B-V) (mag) | 2.11±0.4Ref, Note |
| Declination (°) | 2.2400Ref | Distance (kpc) | 8.16Ref, Note, 6.60Ref, Note | ||
| Galactic longitude (°) | 36.4326Ref | Proper motion in α (mas/yr) | -1.69±0.04Ref | ||
| Galactic latitude (°) | -1.9136Ref | Proper motion in δ (mas/yr) | -4.47±0.04Ref |
| X-Ray | - | IR type | S/D?Ref | Radio | YesRef |
| X-Ray type | - | J (mag) | 11.35Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 10.72Ref | Outbursts | - |
| GALEX NUV (mag) | - | K (mag) | 10.15Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 9.41Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 8.90Ref | Resolved nebula | YesRef |
| U (mag) | - | WISE W3 (mag) | 4.40Ref | IPmax (eV) | 13.6Ref |
| B (mag) | 17.02Ref | WISE W4 (mag) | 0.18Ref | [O III] lines | NoRef |
| V (mag) | 15.34Ref | IRAS 12μm (Jy) | 0.87Ref | He II lines | NoRef |
| R (mag) | 14.92Ref | IRAS 25μm (Jy) | 8.56Ref | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | 11.90Ref | O VI lines | NoRef |
| BP (mag) | 15.40Ref | IRAS 100μm (Jy) | 104.00Ref | ||
| G (mag) | 14.45Ref | AKARI S09 (Jy) | 0.30Ref | ||
| RP (mag) | 13.15Ref | AKARI S18 (Jy) | 3.94Ref |
| 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 | B[e]Ref | Mass (M⊙) | - | Pulsation | Yes?Ref |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | SRRef |
| IR type | S/D?Ref | Luminosity (L⊙) | - | Pulsation period (days) | 124.86Ref |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| 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) | - |
A potential association with symbiotic stars was suggested by Sabin et al. (2021), who studied the extended IPHAS PNe. Their deep image revealed a bipolar structure in the nebula. Additionally, it has been classified as an LPV with a period of around 246 days by Heinze et al. (2018).