VVV J165748.65-430442.53
POSSIBLE
MILKY WAY
Constellation
Scorpius |
Equatorial coordinates
α = 16 57 48.650
δ = -43 04 42.532 |
Galactic coordinates
l = 342.9084°
b = -0.1251° |
| Suspected |
2021Ref |
| Confirmed |
- |
| Symbiotic IR type |
D?Ref |
| Hot component type |
shell-burning?Ref |
| Outbursts |
- |
|
|
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 (°) |
254.4527Ref |
Parallax (mas) |
- |
Reddening E(B-V) (mag) |
14.69±0.95Ref, Note |
| Declination (°) |
-43.0785Ref |
Distance (kpc) |
14.6Ref
-, Note |
|
|
| Galactic longitude (°) |
342.9084Ref |
Proper motion in α (mas/yr) |
- |
|
|
| Galactic latitude (°) |
-0.1251Ref |
Proper motion in δ (mas/yr) |
- |
|
|
Observations
| X-Ray |
NoRef |
IR type |
D?Ref |
Radio |
- |
| X-Ray type |
- |
J (mag) |
18.13Ref |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
14.39Ref |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
11.27Ref |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
8.97Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
7.98Ref |
Resolved nebula |
- |
| U (mag) |
- |
WISE W3 (mag) |
4.78Ref |
IPmax (eV) |
- |
| B (mag) |
- |
WISE W4 (mag) |
1.67Ref |
[O III] lines |
- |
| V (mag) |
- |
IRAS 12μm (Jy) |
4.48Ref |
He II lines |
- |
| R (mag) |
- |
IRAS 25μm (Jy) |
8.00Ref |
[Fe VII] lines |
- |
| I (mag) |
- |
IRAS 60μm (Jy) |
129.00Ref |
O VI lines |
- |
| BP (mag) |
- |
IRAS 100μm (Jy) |
454.00Ref |
|
|
| G (mag) |
- |
AKARI S09 (Jy) |
- |
|
|
| RP (mag) |
- |
AKARI S18 (Jy) |
- |
|
|
Orbit
| 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 |
- |
|
|
|
|
Cool component
| 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 |
- |
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) |
- |
|
|
|
|
Notes
Suspected in Guo et al. (2021) based on IR photometric variability with a period of 419 days and the analysis of infrared spectra.
References
- Guo, Z., Lucas, P. W., Contreras peña, C. et al., 2021, MNRAS, 504, 1, 830, 2021MNRAS.504..830G
Last updated: April 12, 2021