POSSIBLE
MILKY WAY
|
| V1708 Sco | IRAS - | GSC2.4.2 S8HR044468 | AAVSO 000-BNR-146 |
| SIMBAD V* V1708 Sco | Pan-STARRS 70732609247537680 | SAO - | VSX 1547476 |
| GAIA DR3 4058144727782811648 | SkyMapper 172342.00-310308.5 | WRAY - | GCVS V1708 Sco |
| 2MASS J17234193-3103075 | HIP - | Hen - | BD - |
| WISE J172342.05-310309.2 | 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 (°) | 260.9247Ref | Parallax (mas) | 0.073±0.071Ref | Reddening E(B-V) (mag) | 2.01±0.06Ref, Note |
| Declination (°) | -31.0522Ref | Distance (kpc) | 7.72Ref, Note, 6.37Ref, Note | ||
| Galactic longitude (°) | 355.6497Ref | Proper motion in α (mas/yr) | -1.60±0.08Ref | ||
| Galactic latitude (°) | 2.8436Ref | Proper motion in δ (mas/yr) | -9.52±0.06Ref |
| X-Ray | YesRef | IR type | S?Ref | Radio | - |
| X-Ray type | α?Ref | J (mag) | 11.63Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 10.30Ref | Outbursts | YesRef |
| GALEX NUV (mag) | - | K (mag) | 9.75Ref | Outburst type | SyRN?Ref |
| IUE | NoRef | WISE W1 (mag) | 8.42Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 8.52Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 8.30Ref | IPmax (eV) | 54.4Ref |
| B (mag) | - | WISE W4 (mag) | 7.64Ref | [O III] lines | NoRef |
| V (mag) | - | IRAS 12μm (Jy) | - | He II lines | YesRef |
| R (mag) | - | IRAS 25μm (Jy) | - | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | - | O VI lines | NoRef |
| BP (mag) | 18.66Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 16.23Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 14.72Ref | 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 | YesRef |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | SRRef |
| IR type | S?Ref | Luminosity (L⊙) | - | Pulsation period (days) | 140.5±0.8Ref |
| 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) | - |
The object was detected in an outburst in 2020. According to Aydi et al. (2020), the spectrum bears a resemblance to that of symbiotic novae, although no signs of a red giant star were observed in the red/near-infrared part of the spectrum. Mroz & Udalski (2020) suggested that the progenitor was a pulsating red giant.