T Ceti
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 00h 21m 46.27529s[2] |
| Declination | −20° 03′ 28.9098″[2] |
| Apparent magnitude (V) | 5.61[3] (5.0 - 6.9)[4] |
| Characteristics | |
| Spectral type | M5.5e − M8.8e[5] |
| B−V color index | 1.58±0.03[3] |
| Variable type | SRc[6] |
| Absolute magnitude (MV) | −1.51[3] |
| Details dex | |
| Database references | |
| SIMBAD | data |
T Ceti is a
light years. It is moving further from the Earth with a heliocentric radial velocity of +29 km/s.[7]
This is an
spectrum.) It is a long period Mira variable with changing cycle lengths, showing a variation in its spectral features over the course of each cycle. Pulsation periods of 388, 398, and 382 days have been reported, as well as variations in the amplitude, which may indicate dual pulsation cycles that are interfering with each other.[5] The star is losing mass at the rate of 8.2×10−8 M☉ y−1,[12] and it is surrounded by a circumstellar dust shell consisting of crystallized, mostly iron-rich silicates.[5]
T Ceti has an estimated three times the
References
- ^ "ASAS All Star Catalogue". The All Sky Automated Survey. Retrieved 8 December 2021.
- ^ .
- ^ S2CID 119257644.
- ^ S2CID 125853869.
- ^ S2CID 118332811, 93
- ^ S2CID 49573767.
- ^ S2CID 59451347, A61.
- ^ S2CID 18759600.
- ^ "T Cet". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 28 August 2018.
- doi:10.1086/145937.
- Bibcode:1999ESASP.427..381O.
- , A101
