HV 11417 is a candidate Thorne–Żytkow object, put forward in a paper by Emma Beasor and collaborators. The paper also claims that another candidate for the Thorne–Żytkow object, HV 2112, was not a Thorne–Żytkow object because it seemingly possessed no strange quality that would label it as a Thorne–Żytkow object.[1] HV 11417 has since been identified as a likely foreground halo star.[3]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Tucana |
| Right ascension | 01h 00m 48.2s[1] |
| Declination | −72° 51′ 02.1″[1] |
| Apparent magnitude (V) | 19.83[2] |
| Characteristics | |
| Evolutionary stage | M-type supergiant, Thorne-Żytkow object? |
| Spectral type | M5Ie[2] |
| Astrometry | |
| Proper motion (μ) | RA: −0.307[2] mas/yr Dec.: −1.769[2] mas/yr |
| Details | |
| Luminosity | 74100[1] L☉ |
| Other designations | |
HV 11417, PMMR 113, TIC 182293383[2] | |
| Database references | |
| SIMBAD | data |
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