CONFIRMED
MILKY WAY
|
| V4368 Sgr | IRAS - | GSC2.4.2 SA8P080246 | AAVSO 000-BCD-619 |
| SIMBAD V* V4368 Sgr | Pan-STARRS 84362836679700410 | SAO - | VSX 32068 |
| GAIA DR3 4086068199924917760 | SkyMapper 185440.31-194159.7 | WRAY - | GCVS V4368 Sgr |
| 2MASS J18544031-1941597 | HIP - | Hen - | BD - |
| WISE J185440.31-194159.7 | TYC - | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | - |
| Gaposchkin (1957) | - | Kenyon (1986) | - | Akras et al. (2019) | V4368 Sgr (Conf.) |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | - |
| Right ascension (°) | 283.6680Ref | Parallax (mas) | 0.190±0.026Ref | Reddening E(B-V) (mag) | 0.22±0.01Ref, Note |
| Declination (°) | -19.7000Ref | Distance (kpc) | 4.88Ref, Note, 5.08Ref, Note | ||
| Galactic longitude (°) | 15.5905Ref | Proper motion in α (mas/yr) | -5.61±0.03Ref | ||
| Galactic latitude (°) | -9.5282Ref | Proper motion in δ (mas/yr) | -9.66±0.03Ref |
| X-Ray | - | IR type | SRef | Radio | - |
| X-Ray type | - | J (mag) | 9.08Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 8.86Ref | Outbursts | YesRef |
| GALEX NUV (mag) | - | K (mag) | 8.62Ref | Outburst type | SyNRef |
| IUE | NoRef | WISE W1 (mag) | 8.64Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 8.08Ref | Resolved nebula | NoRef |
| U (mag) | - | WISE W3 (mag) | 7.02Ref | IPmax (eV) | 35.1Ref |
| B (mag) | 12.70Ref | WISE W4 (mag) | 5.90Ref | [O III] lines | YesRef |
| V (mag) | 11.97Ref | IRAS 12μm (Jy) | - | He II lines | NoRef |
| R (mag) | 10.36Ref | IRAS 25μm (Jy) | - | [Fe VII] lines | NoRef |
| I (mag) | 9.64Ref | IRAS 60μm (Jy) | - | O VI lines | NoRef |
| BP (mag) | 12.52Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 12.11Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 11.38Ref | 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 | SRef | 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) | - |
Detected in outburst since 1993, as reported in Hirayama et al. (1994). They mentioned that the object was not present on plates from 1888 to 1989, with a limiting magnitude of B about 14.5 and fainter in some cases. Additionally, Grebel et al. (1994) reported that the object was invisible on Sonnenberg plates, and the amplitude of the outburst might have been 11 magnitudes according to their observations. The spectroscopic and photometric evolution is detailed in Munari et al. (2009).