CONFIRMED
LMC
|
| Sanduleak's star | IRAS Z05460-7117 | GSC2.4.2 S0UL496203 | AAVSO 000-BLT-635 |
| SIMBAD MACHO 15.10552.951 | Pan-STARRS - | SAO - | VSX 410503 |
| GAIA DR3 4657015446868152320 | SkyMapper 054519.50-711606.8 | WRAY - | GCVS - |
| 2MASS J05451956-7116067 | HIP - | Hen - | BD - |
| WISE J054519.53-711606.7 | TYC - | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | Sanduleak's (Conf.) | Belzcyński et al. (2001) | Sanduleak's star (Conf.) |
| Gaposchkin (1957) | - | Kenyon (1986) | LMC -- (Conf.) | Akras et al. (2019) | Sanduleak's star (Conf.) |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | Sanduleak's star (Conf.) |
| Right ascension (°) | 86.3314Ref | Parallax (mas) | 0.108±0.073Ref | Reddening E(B-V) (mag) | 0.23±0.02Ref, Note |
| Declination (°) | -71.2686Ref | Distance (kpc) | 49.97±0.19Ref 5.62Ref, Note, 5.37Ref, Note |
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| Galactic longitude (°) | 281.9123Ref | Proper motion in α (mas/yr) | 1.93±0.10Ref | ||
| Galactic latitude (°) | -30.8732Ref | Proper motion in δ (mas/yr) | 0.42±0.10Ref |
| X-Ray | NoRef | IR type | D'Ref | Radio | - |
| X-Ray type | - | J (mag) | 15.92Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 14.59Ref | Outbursts | Yes?Ref |
| GALEX NUV (mag) | - | K (mag) | 13.21Ref | Outburst type | - |
| IUE | YesRef | WISE W1 (mag) | 11.31Ref | Jets | YesRef |
| FUSE | YesRef | WISE W2 (mag) | 9.79Ref | Resolved nebula | - |
| U (mag) | 16.86Ref | WISE W3 (mag) | 6.96Ref | IPmax (eV) | 114Ref |
| B (mag) | 17.41Ref | WISE W4 (mag) | 4.96Ref | [O III] lines | YesRef |
| V (mag) | 17.06Ref | IRAS 12μm (Jy) | - | He II lines | YesRef |
| R (mag) | 15.69Ref | IRAS 25μm (Jy) | - | [Fe VII] lines | YesRef |
| I (mag) | 16.96Ref | IRAS 60μm (Jy) | - | O VI lines | YesRef |
| BP (mag) | 17.25Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 17.10Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 16.56Ref | 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 | D'Ref | 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⊙) | 0.092Ref | Accretion disk | - |
| Eff. temperature (K) | 130000±30000Ref | Luminosity (L⊙) | 2400±1200Ref | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
Sanduleak's star is usually classified as a symbiotic star, although no direct optical evidence confirming the presence of the giant component exists. Angeloni et al. (2011) discovered a giant, highly collimated jet extending 14 parsecs from the star. Over at least two decades, Sanduleak's star has been steadily fading at an apparent constant rate of approximately 0.03 mag/yr in all bands (Angeloni et al., 2014).