SUSPECTED
M31
|
| CXOM31 J004243.1+411604 | IRAS - | GSC2.4.2 NBVE061891 | AAVSO 000-BCT-501 |
| SIMBAD V* S And | Pan-STARRS - | SAO - | VSX 2 |
| GAIA DR3 - | SkyMapper - | WRAY - | GCVS - |
| 2MASS - | HIP - | Hen - | BD - |
| WISE - | 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 (°) | 10.6791Ref | Parallax (mas) | - | Reddening E(B-V) (mag) | 0.5±0.09Ref, Note |
| Declination (°) | 41.2675Ref | Distance (kpc) | 785±25Ref -, Note |
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| Galactic longitude (°) | 121.1702Ref | Proper motion in α (mas/yr) | - | ||
| Galactic latitude (°) | -21.5743Ref | Proper motion in δ (mas/yr) | - |
| X-Ray | YesRef | IR type | - | Radio | - |
| X-Ray type | β?Ref | J (mag) | 10.68Ref | Flickering | - |
| GALEX FUV (mag) | - | H (mag) | 9.99Ref | Outbursts | Yes?Ref |
| GALEX NUV (mag) | - | K (mag) | 12.27Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | - | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | - | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | - | IPmax (eV) | - |
| B (mag) | - | WISE W4 (mag) | - | [O III] lines | - |
| V (mag) | - | IRAS 12μm (Jy) | - | He II lines | - |
| R (mag) | - | IRAS 25μm (Jy) | - | [Fe VII] lines | - |
| I (mag) | - | IRAS 60μm (Jy) | - | O VI lines | - |
| BP (mag) | - | IRAS 100μm (Jy) | - | ||
| G (mag) | - | AKARI S09 (Jy) | - | ||
| RP (mag) | - | 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 | - | Luminosity (L⊙) | - | Pulsation period (days) | - |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| Type/Spectral type | - | Mass (M⊙) | - | Spin period (min) | - |
| Shell-burning/Accreting-only | - | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | - | Luminosity (L⊙) | - | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
Identified as an X-ray source in M31, it was noticed as a possible candidate remnant of the supernova of 1885, S And, as reported in Di Stefano et al. (2004). However, this identification had been examined and rejected by Kaaret (2002). In SIMBAD (Wenger et al., 2000), both objects are considered as one. Chiosi et al. (2014) suspected its symbiotic nature. They found an object with colors that may indicate symbiotic features in the error circle of this X-ray source.