CONFIRMED
MILKY WAY
|
| V1918 Sgr | IRAS - | GSC2.4.2 SA6Y057603 | AAVSO 000-BFG-321 |
| SIMBAD V* V1918 Sgr | Pan-STARRS 82932793949672041 | SAO - | VSX 29618 |
| GAIA DR3 4091702303736858240 | SkyMapper 183734.79-205324.9 | WRAY - | GCVS V1918 Sgr |
| 2MASS J18373479-2053248 | HIP - | Hen - | BD - |
| WISE J183734.78-205324.9 | 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 (°) | 279.3949Ref | Parallax (mas) | 0.035±0.019Ref | Reddening E(B-V) (mag) | 0.35±0.02Ref, Note |
| Declination (°) | -20.8903Ref | Distance (kpc) | 10.21Ref, Note, 9.63Ref, Note | ||
| Galactic longitude (°) | 12.7329Ref | Proper motion in α (mas/yr) | 0.16±0.03Ref | ||
| Galactic latitude (°) | -6.4507Ref | Proper motion in δ (mas/yr) | -2.93±0.02Ref |
| X-Ray | - | IR type | SRef | Radio | - |
| X-Ray type | - | J (mag) | 10.69Ref | Flickering | NoRef |
| GALEX FUV (mag) | - | H (mag) | 9.90Ref | Outbursts | - |
| GALEX NUV (mag) | - | K (mag) | 9.65Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 9.72Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 9.76Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 9.60Ref | IPmax (eV) | 35.1Ref |
| B (mag) | - | WISE W4 (mag) | 8.20Ref | [O III] lines | YesRef |
| V (mag) | 13.60Ref | 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) | 14.37Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 13.48Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 12.47Ref | AKARI S18 (Jy) | - |
| Orbital period (days) | 432?Ref | γ velocity (km/h) | 39.56±3.22Ref | 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 | K4 IRef | Mass (M⊙) | - | Pulsation | - |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | - |
| IR type | SRef | Luminosity (L⊙) | - | Pulsation period (days) | - |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| Type/Spectral type | - | Mass (M⊙) | - | Spin period (min) | - |
| Shell-burning/Accreting-only | shell-burningRef | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | - | Luminosity (L⊙) | - | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
Selected as a symbiotic candidate for the AAVSO observing campaign (Waagen, 2020) by Adrian B. Lucy from Columbia University, this object was subsequently confirmed as a symbiotic star by Lucy (2021).